XIV. PHOTOGRAPHY.--Photography for Chemists.--Lantern slides
by reduction.--How to produce lantern slides from large
negatives. 17297
XV. PHYSICS.--A Research on the Liquefaction of Helium.--A
research in advanced experimental physics upon the newly
discovered element helium.--1 illustration. 17299
Physics Without Apparatus.--Several interesting and
simple experiments described.--1 illustration. 17302
XVI. TECHNOLOGY.--Apparatus for the Manufacture of Acetylene
Gas.--Description of a number of prominent acetylene
apparatus, with illustrations and sectional views
thereof.--12 illustrations. 17294
Belleek China.--History of this beautiful china, and
foundation of its manufacture in Ireland and subsequent
introduction into America.--Description of different
Belleek marks. 17292
The Coming Light.--An incandescent gas burner employing
artificial draught produced by electric motor.--2
illustrations. 17296
* * * * *