_Coaches_.--We come now to the means of communication on the roads for

the body, and also for the mind, as both must go together--viz., the

coach and the carriage or cart (for before the roads were made we had no

coaches). In the first place, these carts or carriages were rude and

heavy waggons, without springs or other comfort; but still they served

to convey the body, and the mind that went with it at last discovered,

by degrees, that conveyances could be constructed so as to cause less

wear and tear on animal life. The result of time and labour has been the

elegant constructions of the present day. The first hackney-coaches were

started in London, A.D. 1625, by a Captain Bailey. Another conveyance

for the body, the sedan-chair, was introduced first into England in

1584, and came into fashion in London in 1634. The late Sir John

Sinclair was called a fool because he said a mail-coach would come from

London to Thurso. I am glad to say that he _saw_ it, and it opened up a

communication for the body and mind that has worked wonders in the far

North. We now have a railway.

_Steam._--We proceed next to the grandest stage--or, as it is said in

the North, "We took a start." What place have we to thank for this great

start, but the very town in which I have the honour to give this closing

address. Was not James Watt born here? The 19th January 1736 was a great

day for England, Scotland, and the world at large, for that day brought

into the world a man who, by his talents and by his observations of what

others had done before him, was the means of bringing to a workable

state that all-powerful and most useful machine, the steam-engine. The

people of Greenock may well indeed feel proud of being citizens of a

town that produced such a man; for though many places have given birth

to great and valuable men, and persons who rendered the world vast and

lasting service, yet, I may safely say, no one has surpassed James Watt

in the benefits he has bestowed on the world, on its trade, its

commerce, and its means of communication for both body and mind, as the

producer of the steam-engine. There were not even coaches in his time,

and his first journey to London was performed on horseback, a ten days'

ride, very different to our ten or twelve hours now-a-days. His life and

determination show what a man can do, both for himself and his

fellow-men, and are a bright example to be followed by all those

especially who belong to such associations as the one I now have the

honour to address. He not only thought, but carried out his thoughts to

a practical issue, and, though laughed at, he still stuck to his great

work, and by his perseverance gave to the world one of its greatest

boons, and certainly its greatest motive power--the steam-engine. The

first use of the engine, as you well know, was the pumping of water.

Rude were the machines made by Savory, Newcombe, and others, to achieve

the desired end, but Watt, in his small room in the cottage at Glasgow,

at last brought about a triumph that the world at large now feels and

acknowledges. I will not go further into the history of a man so well

known and appreciated, as his memory must be here, but will go on to say

something briefly on the results of the operations of the mind over the

material placed before it, to bring into form and make it practically

useful for the advantage of man.

_Steamers_.--Greenock must see and value the great power at her disposal

in the steam-ship. She has now her large building yards, and it was from

her yards that, in 1719, the first ship--belonging to Greenock, and I

believe built there--sailed for America, and from that time the trade

increased rapidly. And I believe Glasgow launched the first Scotch ship

that ever crossed the Atlantic in 1718, only one year in advance of

Greenock. The large building yards of Greenock bring into the town sums

of money which, but for these yards, would go elsewhere, and deprive the

community of many comforts, not to say luxuries. They are the means of

carrying on the import and export trade of this thriving town in a way

that could not otherwise have been done; famous as this place is for

shipbuilding, spinning, and its splendid sugar-works. These latter you

have indeed reason to be proud of, for there are few finer. The increase

of importation of sugar is striking. In Britain in 1856, our imports of

this article were 6,813,000 lbs., in 1865 it was 7,112,772 lbs. Though

all this did not come to Greenock, yet from what you do in this trade, I

think the word holds good that we as Scotchmen are sweet-toothed. You

can now boast of a steam communication not only on the coast, but over

the world. I had last year the pleasure of a cruise in the Trinity yacht

"Galatea," and does not she speak volumes for what can be done by your

citizens? for that vessel was built by Mr. Caird, and even the ship

seemed to feel that she came from the beautiful Clyde. What a difference

now to the time of Henry Bell in 1812, who first started a steamer for

passengers on the Clyde! We have now in Great Britain 2523 steamers,

registering no less than 766,200 tons. Have not these improvements shown

what means of communication do for body and mind?

_Railways_.--Having said this much about steamers, I will turn for a

short time to another means of communication for body and mind--I mean

the railways. Are not they a striking advance in science, and the

bringing to bear the power of mind to work on the material that has been

provided for our use by an all-wise God? It is but a few years since,

comparatively speaking, they came into existence, and yet, from the time

of George Stephenson (and his perseverance largely aided to perfect the

railway), see what vast sums of money have been spent, what magnificent

and noble structures have been erected, and what speed has been obtained

for the communication of body and mind. Instead of the thirty miles from

Manchester to Liverpool in 1830, we now have in Great Britain and

Ireland 13,289 miles of railway. The total capital paid in 1865 was

£455,478,000, and this has largely increased since then. An idea may be

formed of the difference of the rate of speed in travelling effected,

both before and after the introduction of railways, by such facts as the

following:--Two hundred years ago, King James's groom rode six days in

succession between London and York, and a wonderful feat it was deemed;

whilst now, the same distance is performed in five hours. About 1755 to

1760, the London and Edinburgh coach was advertised to run between these

cities in fourteen days in summer, and sixteen in winter, resting one

Sunday on the road. So much for the growing desire for speedy

intercourse for mind and body.

_Suez Canal_.--There is an all-absorbing topic now before the public,

and it is one that brings strikingly before us the thirst for

communication of both body and mind to and from distant parts of our

globe. It is one of deep importance to all who take an interest in the

advancement of science--I mean the Suez Canal. The Red Sea cannot but be

familiar to us all--a sea of the most profound interest, for there did

the mighty Jehovah work one of His most stupendous miracles, when He

brought the children of Israel out of Egypt, and at the same time

destroyed Pharaoh and all his host. But in how different a manner did

the Lord work! By a word He caused the waters to go back, leaving a wall

on the right hand and on the left, so that the people of Israel went

through on dry land. This was not all. Were not His chosen people

accompanied by a pillar of fire to give light in the night season, and a

cloud of thick darkness to prevent the Egyptians coming near them during

the day? Does not this show that His mercy is over all His works? For

after He had brought out His people with joy, and His chosen with

gladness, He overthrew their enemies in the sea--in the same place where

He had performed such wonders for the preservation of His people.

Often has the spot been crossed by our steamers; and though some may,

and I trust do, bring to mind the stupendous miracle, yet it, like many

other thing's, is regarded as a matter gone by. Here now we have the Red

Sea brought under our notice in a most striking manner, and one that

leads us not only to feel the greatness of the power of man over

material things, but I trust it may also lead us to see our littleness

when compared with Him who made us. We, that is the nations which

brought about this great canal, have had to spend years and vast sums of

money to carry out the end aimed at, and under the Divine aid it has

been brought to a successful termination. But see what God did! Did the

Almighty consult engineers, or take soundings and levels, or ask the

laws of Nature if He could or would succeed? Nay,--one word was enough.

He spake, and that was sufficient--the waters stood up in a heap. We,

however, have succeeded in bringing the Red Sea and the Mediterranean

into connection with each other--an achievement that strongly shows the

determination of man. It is a boon, indeed, to the commerce of this

country, and I hope also of many others, as by enabling ships to pass

through, the transhipment of cargo is now done away with, and the

distance to the other side of the globe reduced to its minimum.

Engineers may truly be proud of the day that brought this great and

noble work to a completion; and I trust they will thank the Lord who

hath crowned their strenuous efforts with success.

_Books_.--Having got thus far as regards the conveyance of the body, we

must now turn to the communication of the mind, and the thoughts of one

individual as conveyed to another, and this leads one to speak of books.

What are they but the means of communication of the thoughts of great

men, and a distribution of those thoughts for the benefit of their

fellows, by bringing before them matters of interest in the history of

our own country and that of others. The great object to be looked to is

the selection of our books--the variety is now so great; and I grieve to

say (and I think I am right) that the sensational works of the present

day have a tendency to lead the mind into a train of thought that is

flippant and unsteady, and I would warn young people against them. When

we look to such works as those of Sir Walter Scott, Macaulay, and many

others of the same kind, we find food for the mind, the benefit of which

cannot be over-estimated.

_Printing_.--The spread of knowledge through the world is indeed a boon

which cannot be too highly extolled; but the thoughts of man could not

thus have been circulated had it not been for the printing-press. See

what science and art have done for us in this most perfect and beautiful

machine! When we go only to one example, the "Times" newspaper, and

consider the amount of information it circulates each day through the

world, it strikes one forcibly what man has been allowed and enabled to

do for the benefit of himself and his fellow-men. What we have brought

the printing-press to, is shown in 20,000 copies of the "Times" being

thrown off in one hour, and the advantage it has been to the advancement

of literature in our now being able to buy such works as those of Sir

Walter Scott for sixpence a volume.

Having gone so far, I must not detain you for more than a brief period.

You have had such an able and interesting course of lectures given by

men of high talent, that little remains for me except to close this

course with congratulation to the Association in being able to procure

those individuals to give their valuable time to this desirable object;

for what in life is more interesting than the imparting the knowledge we

may possess to others who desire to acquire it, seeing that there is no

way in which moral and social intercourse is more advanced and

developed. Still, before closing, I must ask for a short time to go into

one or two other subjects. And first, I will take one of the greatest

importance to the commerce of this country, and one that has shown what

the mind has done for communicating the thoughts of one person to

another at far distant places--I refer to the telegraph. The land is

not only covered with wires, but even the vast depths of the great ocean

are made to minister to our requirements. The world, we may say, is

encircled with ropes, and instant communication has been the result.

What has achieved these great results but the mind of man applied to

science! And see in what a multitude of ways this application of mind

has been made to work! What does it bring into play? Why, we have mining

to produce the metal to make the wire; we have the furnace, hammers, and

wire-drawing machines to produce the wire from the raw material. We have

the forest then to go to for gutta-percha, for land poles, and for tar

to preserve the cables. We have the farmer for our hemp. We have the

chemist, we have the electrician, we have the steamer, and a great

number of other requisites before the silent but unerring voice of the

needle brings the thoughts of one man in America to another in this town

in an instant of time. Accidents and mistakes will occur in the

best-regulated works of all kinds, but I hope not often. One as to the

telegraph I must tell that happened during the Indian Mutiny. The

message meant to say that "The general won't act, and the troops have no

head." The transformation was curious, namely, "The general won't eat,

and the troops have cut off his head." If men would only consider well

this grand achievement, they would be led indeed to say and feel, with

all humility and thankfulness, that God has truly given him dominion

over the works of His hands, and has put all things in subjection under

his feet.

I had almost forgotten one other point of communication for mind, and,

though at the risk of trying your patience, I must mention it, as its

increase has been so large, and its advantages so manifold and untold. I

mean the penny-postage. I am not going to enter into it at any length,

but the increase of correspondence has been so large, that Sir Rowland

Hill's name should not be left out of a lecture treating on subjects

such as this one is intended to do. I will content myself by merely

telling the increase of correspondence, and leave you to judge for

yourselves as to its benefits. The number of letters in 1839, before the

penny-postage, was 82,470,596, and in 1866 it was 597,277,616. Judge the

difference!

Coming to the results of communication, I have one subject to bring

before you, and as it has shown to such a large extent the benefits of

international communication, I trust a few words on it may not be out

of place. The subject is the great International Exhibitions that have

been held in various countries in the last eighteen years. The first

idea of holding such great exhibitions emanated from a man whose name

cannot be held in too great estimation by all. Few men were gifted with

such rare talents as he was, for there were few subjects, whether in

science, literature, or art, that he was not intimately acquainted with.

This man was the late Prince Consort. He conceived the idea that if the

products of the various countries of the world could be brought together

under one roof, the knowledge these would convey of the machinery,

cultivation, science, literature, and arts practised in the various

parts of the globe would tend to stimulate and advance the mind by

showing that we had not only ourselves to look to, but that in a great

measure we had to depend on others for the many blessings we now enjoy;

and also lead us to see how needful to our prosperity and comfort is a

constant communication with those who can communicate to us that

knowledge which otherwise we could not obtain. Certainly the results

have proved that he was right. Could anything have been more

interesting or instructive to all than a visit to the Great Exhibitions

of 1851 or 1862, or that of Paris in 1867. The public interest is at

once shown when I tell you that 6,039,195 persons visited the latter,

and the receipts in money were £506,100. There, all and every one had

before him at a glance the subject most suited to his taste, with a full

description of the country which produced it. From the largest machine,

the heaviest ordnance, the most brilliant and precious stones, the

finest silks, lace, furniture, carriages, the greatest luxuries for the

table, and, in fact, everything needful for the use of man;--all were

there, and all to be seen and studied by the inquiring mind, or to be

regarded as very wonderful by those who went to the Exhibition as a

sight. Few, I venture to say, ever left these buildings except wiser

than when they entered. It could not fail to strike one, if one only

gave it a moment's reflection, and asked himself, how has all this been

brought about, but that it was the result of the communication of the

minds of certain individuals with those of others, and by a

concentration of the products of various countries to enlighten the

mind as to the vast intelligence of the world at large.

In conclusion, I feel now that I have spoken long enough for any

lecture, though I have not by any means exhausted the subject of

communication of either past or present; but I should feel grieved if I

exhausted your patience. All things, as we well know, must have an end,

except that life to which we are looking forward and striving to gain,

where we shall cease from our labours and be at rest. We have been

endued by our Maker with thought and mind, talents to be used for our

benefit, and not wrapped up in a napkin till our Lord's return, but to

be placed out so as to bring in either the five or the ten talents. And,

as you all know, we are answerable for the manner in which we employ

them. May the result prove that we have used them aright.

The progress of means of communication of mind and body have been

gradual but steady, and I think may be represented by human life from

its childhood to manhood, as beautifully set forth in the 13th chapter

of 1st Corinthians 11th verse, where it is said, "When I was a child, I

spake as a child; I understood as a child, I thought as a child; but

when I became a man, I put away childish things." Is not this very much

in keeping with our growth in communication? At first it was small, and

we were content to hear of what others were engaged in without regard to

time, as one day earlier or later was of little consequence. But now we

are not children, but are become men in our interests and thirst for

communication with each other. What should we say if we found the

Express, as was written on the boy's post-bag, busily engaged in a game

of bowls on the road, regardless of the loss of time or money thereby

occasioned? I think we should be inclined to write to the papers.

The results of communication are manifold, and day by day they are

brought before us in a manner which shows the untiring wish of man for

improvement both in social and commercial interests. These results are

strikingly shown in the various subjects I have endeavoured to bring

before you. Each and all of them are subjects for thought. What should

we now be without, I may say, any one of them?

A well-regulated mind is the most desirable of all acquirements, and I

know no better means of gaining this than by meetings of such

institutions as this. Here you have intercourse with your friends, and

you can gain from one another by friendly intercourse stores of

knowledge, that to search for as individuals would take away much more

time than you could by any means devote, and at the same time attend to

the business of your calling. Here you have the means of amusement as

well as of gaining sound information, and I trust no one here will ever

have cause to regret the day when he came to associate with his friends,

and hear what others could communicate, for "in the multitude of

counsellors there is wisdom."

_THE STEAM-ENGINE._

The many varieties of the world's manufactures--one might almost call

them wonders--are now so numerous, that to bring any particular one in a

single form before this meeting is a matter of no easy nature. To-night,

however, I have ventured to single out, and have the pleasure of

bringing before you, the steam-engine, as the prime mover at present of

our workshops and manufactories, as also the grand motive power of our

railways, now so different from the time when the great Stephenson was

said to be mad, because he thought it possible to drive a train at

fifteen miles an hour. For the first serviceable use of this grand

machine we are indebted to the great James Watt. He it was who first

wrought it so as to be under the useful and entire control of man, from

what it was in the time of Hero of Alexandria, about 120 years before

Christ. Our engineers have, since Watt's time, improved upon it year by

year, till at the present day, instead of having to go in a mail-coach

from London to Edinburgh, which formerly took fifty hours, we now go in

the express train in ten, a distance of 420 miles. If beyond this ten

hours, we grumble, and ask guards, porters, &c., at the various

stations, "What has made the train so late to-day?" forgetting that just

before the railways were first opened, the great Stephenson was urged

not to say too much as to the supposed power of the locomotive, in case

the cause of railways might be damaged. This was only some forty years

ago, and it shows us how times are changed, for in the present day we

consider thirty miles an hour anything but a fast train.

The history of the steam-engine is a subject on which so much has been

written in books and magazines now before the public, that what I am

about to offer, though pretending nothing new, yet I hope may be looked

upon as containing something useful as well as instructive, both to the

practical and the amateur mechanic. I shall therefore, in as small a

compass as possible, trace the steam-engine from its first and early

stages up to its present perfect state as our grand motive power. The

first mention made of the vapour of water, as formed by the action of

heat upon it, is found to be as far back as 120 B.C., when one Hero of

Alexandria employed this vapour for the purpose of driving a machine. It

is a well-known fact that when water is brought up to a certain degree

of heat, called the boiling-point, that it sends forth a vapour, the

elastic properties of which, when in an open vessel, are not

perceived--as, for instance, in a common pan--yet if the vessel is

closed or shut up at the top, you will find that the vapour acquires

such a degree of elastic force, that, if not allowed to escape by fair

means, it would soon make a way or vent for itself by bursting whatever

vessel it was contained in. Steam is thus highly elastic, but when

separated from the fluid out of which it is generated, it does not

possess a greater elastic force than the same quantity of air. If, for

example, a vessel is filled with steam only at 212°, it may be brought

to a red heat without fear of bursting; but if water is also in the

vessel, each additional quantity of heat causes a fresh quantity of

steam to be generated, which adds its elastic force to that of the steam

already in the vessel, till the constantly accumulating force at last

bursts the vessel.

This elastic vapour is called steam, and it is by this that that most

beautiful machine, the steam-engine, is driven. As you all know, by this

vapour or air--for it is invisible till it loses part of its

heat--enormous power is obtained in a small compass, and the labour of

man reduced to nothing compared with former ages. Many men laboured to

perfect machinery to be worked by this vapour of water, and many came

near the mark; but it remained for the great Watt, at the Soho Works,

Birmingham, to bring the engine to its useful and working state, for

though discovered as a motive power 120 B.C., it was yet reserved for

this truly great man to be what may be termed the inventor of the

steam-engine.

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