I. ARCHÆOLOGY.--The Subterranean Temples of India.--The
subterranean temples of India described and illustrated, the
wonderful works of the ancient dwellers in Hindostan.--3
illustrations. 10275
II. BIOGRAPHY.--General F. Perrier.--Portrait and biography of
the French geodesian, his triangulations in Algiers and
Corsica.--1 illustration. 10264
The Crown Prince of Germany--Prince William and his son.--
Biographical note of Prince William, the heir to the German
throne.--1 illustration. 10263
III. BIOLOGY.--Poisons.--Abstract of a lecture by Prof. MEYMOTT
TIDY, giving the relations of poisons to life. 10273
The President's Annual Address to the Royal Microscopical
Society.--The theory of putrefaction and putrefactive
organisms.--Exhaustive review of the subject. 10264
IV. CHEMISTRY.--Molecular Weights.--A new and simple method
of determining molecular weights for unvolatilizable
substances. 10271
V. CIVIL ENGINEERING.--Concrete.--By JOHN LUNDIE.--A practical
paper on the above subject.--The uses and proper methods of
handling concrete, machine mixing contrasted with hand
mixing. 10267
Timber and Some of its Diseases.--By H. MARSHALL WARD.--The
continuation of this important treatise on timber destruction,
the fungi affecting wood, and treatment of the troubles
arising therefrom. 10277
VI. ENGINEERING.--Estrade's High Speed Locomotive.--A comparative
review of the engineering features of M. Estrade's new
engine, designed for speeds of 77 to 80 miles an hour.--1
illustration. 10266
Machine Designing.--By JOHN B. SWEET.--First portion of a
Franklin Institute lecture on this eminently practical
subject.--2 illustrations. 10267
VII. METEOROLOGY.--The Peak of Teneriffe.--Electrical and
meteorological observations on the summit of Teneriffe. 10265
VIII. MISCELLANEOUS.--Analysis of a Hand Fire Grenade.--By
CHAS. CATLETT and R.C. PRICE.--The contents of a fire
grenade and its origin. 10271
How to Catch and Preserve Moths and Butterflies.--Practical
directions for collectors. 10275
The Clavi Harp.--A new instrument, a harp played by means of
keys arranged on a keyboard--1 illustration. 10275
Inquiries Regarding the Incubator.--By P.H. JACOBS.--Notes
concerning the incubator described in a previous issue
(SUPPLEMENT, No. 630).--Practical points. 10265
IX. PHYSICS.--The Direct Optical Projection of Electro-dynamic
Lines of Force, and other Electro-dynamic Phenomena.--By Prof.
J.W. MOORE--Second portion of this profusely illustrated paper,
giving a great variety of experiments on the phenomena of
loop-shaped conductors.--26 illustrations. 10272
The Mechanics of a Liquid.--An ingenious method of measuring
the volume of fibrous and porous substances without immersion
in any liquid.--1 illustration. 10269
X. PHYSIOLOGY.--Artificial Mother for Infants.--An apparatus
resembling an incubator for infants that are prematurely
born.--Results attained by its use.--1 illustration. 10274
Gastrostomy.--Artificial feeding for cases of obstructed
oesophagus.--The apparatus and its application.--2
illustrations. 10274
XI. PHOTOGRAPHY.--How to Make Photo-Printing Plates.--The
process of making relief plates for printers. 10271
XII. TECHNOLOGY.--Improved Current Meter.--A simple apparatus
for measuring air and water currents without indexes or other
complications.--1 illustration. 10270
The Flower Industry of Grasse.--Methods of manufacturing
perfumes in France.--The industry as practiced in the town
of Grasse. 10270
Volute Double Distilling Condenser.--A distiller and condenser
for producing fresh water from sea water.--3 illustrations. 10269
The Argand Burner.--The origin of the invention of the Argand
burner. 10275
* * * * *
[Illustration: THE CROWN PRINCE OF GERMANY--PRINCE WILLIAM AND SON
[From a Photograph]]