The language used in this ebook is that of the source document,
including unusual or archaic spelling. The book was partly written
by representatives of the industries concerned; inconsistencies in
grammar, spelling, punctuation (including the use of decimal points
and commas), style, lay-out, etc. have been retained. Contradictions
and repetitions have not been addressed. Alphabetical sorting
inconsistencies in the index have not been corrected.
Page 218, ... and have them meet as shown in Fig. 13 ...: The
illustrations in this chapter are not numbered. The illustration on
page 215 shows the described meeting of the shields.
Page 305, ... (as shown in Fig. 4): the illustrations with this
article are not numbered.
Page 307, The X-rays are discharged in straight lines as shown in the
figure: there is no such figure in the book.
Pages 328 and 330: page headings WHAT A LODESTONE IS and WHAT
ELECTRICITY IS do not relate to the contents of the pages.
Page 336, The pictures shown on the following pages ...: as printed;
the illustrations are given on previous pages.
Page 364, reference to figure 6: presumably the four illustrations on
this page together form figure 6.
Page 368, When you put oil on the axle, however, ...: some text may
be missing.
Page 376, ... or three-sixty-fourths of a second, and: as printed in
the source document; some text is obviously missing.
Page 489, ... of much importance. The two classes, only two of which
are of much importance. The two classes ...: the redundant text is as
printed in the source document.
Page 491: There is no Fig. 4 in the source document; the unnumbered
figure in the bottom right of the page is assumed to be Fig. 4.
Page 502, captions with bottom illustration: at least one of the
lengths given (4650 and 4560 feet) is likely to be a typographical
error.
Page 547, (The welt shoe has always been considered ...: the closing
bracket is lacking.
Changes made:
Some minor obvious punctuation and typographical errors and
unnecessarily repeated words have been corrected silently.
Illustrations have been moved out of text paragraphs. Page
headers have been transcribed as illustration captions (on top
of illustrations) or as side notes at a suitable location on the
page concerned, so that their reference in the index is (at least
approximately) correct.
Text that was not present as such in the source document but that
was transcribed from within illustrations is given as part of the
illustration caption.
Page 29: ... never see the distance target or vessel ... changed to
... never see the distant target or vessel ....
Page 46: Lock á là Miquelet changed to Lock à la Miquelet.
Pages 74-75: closing double quotes inserted after ... went that very
night.; ... had to look after it themselves.; ... speech had really
been electrically reproduced. Opening double quotes inserted before
Now, it so happened there, ...; My friend, Mr. William Hubbard, ....
Page 114: ... the white mulberry or osage orange are fed the young
worms ... changed to ... the white mulberry or osage orange are fed
the young worm ....
Page 124: ... called an ablate spheroid ... changed to ... called an
oblate spheroid ....
Page 126: Dr. Samuel Pierrpont Langley changed to Dr. Samuel Pierpont
Langley.
Page 167: ... against the loose row of cross threads to lighten it
... changed to ... against the loose row of cross threads to tighten
it ....
Page 205: ... than the heat will cause the air to expand suddenly ...
changed to ... that the heat will cause the air to expand suddenly
...; ... a mixture of potassium, nitrate, or saltpeter, with powdered
charcoal and phur ... changed to ... a mixture of potassium nitrate,
or saltpeter, with powdered charcoal and sulphur ....
Page 229: ... other machines called Mills,” ... changed to ... other
machines called “Mills,” ....; ... which also adds in the drying and
the working ... changed to ... which also aids in the drying and the
working ....
Page 265: ... there is another, solium, which is solid ... changed to
... there is another, sodium, which is solid ...; ... what is called
a reverbratory furnace ... changed to what is called a reverberatory
furnace ....
Page 292: PROMOTHEAN MATCH changed to PROMETHEAN MATCH.
Page 375: This toy we speak of was called a zoctrope changed to This
toy we speak of was called a zoetrope.
Page 376: ... projected at the rate of fourteen or sixteen to the
minute ... changed to ... projected at the rate of fourteen or
sixteen to the second ....
Page 377: Footnote anchor [4] inserted.
Page 414 ff.: Ellipses (...) have been added surrounding the
continuing page headings and illustration captions.
Pages 419 and 438, Morse codes: for the sake of clarity, the spacing
between individual dashes and dots has been increased slightly.
Page 490: ... if a red flag really makes a bull more exited ...
changed to ... if a red flag really makes a bull more excited ....
Page 493: The chemical name for salt is sodium which is derived ...
changed to The chemical name for salt is sodium chloride which is
derived ...; ... substances around us are composed of these elements
along, or ... changed to ... substances around us are composed of
these elements alone, or ....
Page 550: ... for which the lingings were intended. After all the
lingings have been prepared ... changed to ... for which the linings
were intended. After all the linings have been prepared ....
Index: several missing punctuation marks inserted for consistency.
Page 583: Curtis biplane changed to Curtiss biplane.