Q. BIBLIOGRAPHY. 607 



Broun (John Allan). Observations of Magnetic Declination made at 

 Trevandrum and Agustia Malley in the Observatories of His Highness the 

 Maharajah of Travancore, G.C.S.I., in the Years 1852 to 1869. Vol. I. 

 Discussed and edited by John Allan Broun, F.R.S., late Director of the Ob- 

 servatories. London: Henry S. King & Co. 1875. 

 [Nature, XII., 163-105, 1875.] 



Sprague (John T.). Electricity; its Theory, Sources, and Applica- 

 tions. London: E. F. N. Spon. 1875. 

 [Nature, XII. , 144, 145, 1875.] 



Toronto Observatory. Abstracts and Results of Magnetical and 

 Meteorological Observations at the Magnetic Observatory, Toronto, Canada, 

 from 18-41 to 1871. Toronto. 1875. 

 [Nature, XII., 474, 475, 1875.] 



CHEMISTRY. 

 GENERAL. 



Barff (F. S.). Elementarv Chemistry. London : Edward Stanford. 

 1875. 



[Nature, XH., 185, 1875.] 



Hinrichs (Dr. GustaVUS). The Principles of Chemistry and Molecular 

 Mechanics. Davenport, Iowa : Day, Egbert, & Fidlar. 1874. 

 [Nature, XII., 288, 289, 1875.] 



Watts (Henry). A Dictionary of Chemistry and the Allied Branches 

 of other Sciences. Second Supplement. London : Longmans, Green, and 

 Co. 1875. 



[Nature, XII., 327, 328, 1875.] 



CHEMICAL TECHNOLOGY. 



Hofmann (A. W.). Bericht liber die Entwicklnng der Chemischen In- 

 dustrie wahrend desletzen Jahrzehends ; im Verein mit Freunden und 

 Fachgenossen erstattet von Dr. A. W. Hofmann. Autorisirter Abdruck aus 

 dem Amtlichen Bericht iiber die Wiener Weltausstellung im Jahre 1873. 

 Vol. III., Part I. Braunschweig: Fr. Vieweg und Sohn. 1875. 

 [Nature, XII., 365, 366, 1875.] 



PreSCOtt (Albert). Chemical Examination of Alcoholic Liquors. A 

 Manual of the Constituents of the Distilled Spirits and Fermented Liquors 

 of Commerce, and their Qualitative and Quantitative Determination. New 

 York : D. Van Nostrand. (108 pp. Price, $1 50.) 



[Popular (The) Science Monthly, April, 1875, VI., 755.] 



Richardson (Benjamin W.). On Alcohol. A Course of Six Canton 

 Lectures delivered before the Society of Arts. London : Macmillan. 

 [The Academy, Sept. 25, 1875, p. 337, 338.] 



Vogel (Dr. Hermann). The Chemistry of Light and Photography. 

 By Dr. Hermann Vogel, Professor in the Royal Industrial Academy of Ber- 



