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OF THE

FRANKLIN INSTITUTE,

DEVOTED TO

SCIENCE AND THE MECHANIC ARTS.

EDITED BY

Prof. Edwin J. Houston, A.M., Ph.D., Chairman ; Prof. Arthur Beardsley,
C.E., Ph.D., Mr. Theo. D. Rand, Prof. Coleman Sellers, E.D.,
Mr. J. C. Trautwine, Jr., Committee on Publicatious,
with the Assistance of Dr. Wm. H. Wahl,

Secretary of the Institute.

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PHILADELPHIA :
Published by the Institute, at the Hall, 15 South Seventh Street.

1895.

1895, que 5 - 1896, Selviela

Farrar fund

bertci

12/28/72 - held in stock

Citeste mai des

Vol. CXL.-July-December, 1895.

INDEX

Air-lift pump, theory of the. (Harris). ............... 32 Aldrich, Wm. S. Education and the State university ......... 262 American tools in England ..................... 76 Ammeter and voltmeter, recording. (Hering) ............ 463 Anaglyph, the. A new method of producing the stereoscopic effect.

(Watch). ............................ 401 Argon, physical properties of ..................... 314

reasons for predicting the existence of. (Reed) ........ 68 Artificial silk ........... .. ............. 78 Asphalt. (See Sadtler, Day and Peckham.) Asphalts and bitumens. (Sadtler) .................. 198

on the technical analysis of. (Sadtler) ... 383

ih

Bacteriology, recent advances in, etc. (See Ball.)
Ball, M. V. Recent advances in bacteriology, with special reference to

food .............................. 340 Ball nozzle, the. (Kitson) ......... ........... 123 Beet sugar industries ........................ 79 Bergami, F. The citrate method of phosphoric acid determination, with

special reference to insoluble phosphates ..... .... . 139
Berliner, Emile. Technical notes on the gramophone ......... 419
Bitumen. (See Peckham.)
Bitumens. (See Asphalts.)
Brass, determining the quality of, by color ........ ..... 391
Buoys, electrically-lighted, in Gedney Chaunel, New York Harbor . . . 313
Book Notices :

Pray. Steam tables and engine constants .......... 159
Sellers, Wm. & Co. Illustrated catalogue, etc. ......... 316
Kiersted. Sewage disposal ............. .... 317
Buchanan. Antisepsis and antiseptics .............
Beard. Ventilation of mines......... . .... 318
Nernst-Borchers. Jahrbuch der Elektrochemie . ........ 318
Encyclopedie des Aide-Memoire ............ 319, 394
Rothwell. The mineral industry, 1894 ............. 319
Yeo. Steam and the marine steam engine ........... 394
Lang maid-Gaisford. Marine steam engine .......... 394
Seaton. Marine engineering ................: 395
Peabody. Valve gears . ............ ...... 397
Siebel. Mechanical refrigeration ............. 398
Kent. Mechanical engineer's pocket-book ........... 399
Chronicle fire tables, 1895 ................... 399
Johnson. Engineering contracts, etc. ............. 481

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