a SN ee NE as, ; 
Cl 
NeEw SERIES. 1G SINGLE CoPIEs, 15 cts. 
Vou. VI. No. 151. Fripay, NovreMBER 19) 1897. ANNUAL SUBSCRIPTION, $5.00. 
GENERAL ELECTRIC Co.’S 
NEW X=RAY TUBE 
WITH AUTOMATIC VACUUM REGULATOR. 
Simple. Efficient. Long-lived. Cannot run too high in vacuum. 
Roentgen Ray Apparatus, catalogue No. 9,050. Minia- 
ture, Candelabra, Decorative Lamps, catalogue No. 9,044. 
EdISON Decorative and Miniature Lamp Department, 
(GENERAL ELECTRIC COMPANY,) 
HARRISON, N. J. 
Hor 12 Cents 
Dec. 1, 1896. Just Published. Sixth Edition of 
I will mail a finely finished original photo, 
cabinet size, of Sioux Indian Chief, SITTING 
AND MICROSCOPI- 
THE MICROSCOPE CAL METHODS, BULL, with his Signature. Haye 200 sub- 
By SIMON HENRY GAGE, Professor of Microscopy, His- = jects, all different, of leading Western Indians. 
tology and Embryology in Cornell University and the | first-class work. Cabinet Size for 10 centseach. Some sent 
New York State Veterinary College, Ithaca, N. Y., USA. | on selection. Giyereference. After seeing sample you will 
Sixth edition, rewritten, greatly enlarged, and illustrated | want others. Indian Costume, Ornaments and Weapons. 
by 165 figures in the text. Price, $1.50, postpaid. 15,000 Flint Stone Ancient Indian Relics. 100,000 Mineral 
and Fossil Specimens. Catalogue for stamp. 13th year. 
COMSTOCK PUBLISHING CO., Ithaca, N. Y. | [yy STILWELL, Deadwood. South Hak. 
Scientific 
Apparatus 
Ihave excellent facilities and connec- 
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JAMES G. BIDDLE, 
The new “ Jagabi” Adjustable Vacuum X-Ray Tube. Price, $10.00 909 Drexel Building, 
Write for Illustrated Booklet “‘ concerning X-Ray Apparatus.” Just /ssued. PHILADELPHIA. 
