I. ENGINEERING AND MECHANICS--Machine Tools for Boiler Makers.
2 figures.--Improved boiler plate radial drill.--Improved
boiler plate bending roller.
Modern Ordnance. By COLONEL MAITLAND.--Rifled cannon.--Built
guns.--Steel castings.--Breech loading.--Long guns.--Slow
burning of powder.--Breech closers.--Projectiles.--Destructive
power of guns.
Oscillating Cylinder Locomotive. 2 figures.--Shaw's oscillating
cylinder locomotive.
Gas Motors and Producers. By C. W. SIEMENS--2 figures.
The Bazin System of Dredging. By A. A. LANGLEY.--3 figures.
II. CHEMISTRY.--On the Mydriatic Alkaloids. By ALBERT LADENBERG.
--I. Atropine.--II. The Atropine of Datura Stramonium.
--III. Hyoscyamine from Hyoscyamus.
Detection of Small Quantities of Morphia. By A. JORISSEN.
The Estimation of Manganese by Titration. By C. G. SARNSTROM.
On the Estimation and Separation of Manganese. By NELSON
H. DARTON.
Delicate Test for Oxygen.
Determination of Small Quantities of Arsenic in Sulphur. By H.
SCHAEPPI.
III. BIOLOGY, ETC.--Researches on Animals Containing Chlorophyl.
--Abstract of a long and valuable paper "On the Nature and Functions
of the Yellow Cells of Radiolarians and Coelenterates," read
to the Royal Society of Edinburgh. By PATRICK GEDDES.
The Hibernation of Animals, An interesting review of the winter
habits of some of our familiar animals, insects, etc.
IV. HORTICULTURE, SILK CULTURE, ETC.--How to Plant Trees.
By N. ROBERTSON.
The Growth of Palms.
The Future of Silk Culture in the United States. Report of
United States Consul Peixotto, of Lyons. A valuable and encouraging
summary of the conditions and prospects of silk culture
in the United States.
V. TECHNOLOGY, ETC.--Compressed Oil Gas for Lighting Cars,
Steamboats, and Buoys. An elaborate description of the apparatus
and appliances of the Pintsch system of illumination. 14
figures. Elevation and plan of works.--Cars.--Locomotive and car
lamps.--Buoys.--Regulations, etc.