7 eee Sas: 
Marcu 14, 1912] 
Cox; The Measurement of Time, the Astronomer 
Royal; Principia Mathematica, A. N. Whitehead, 
F.R.S., and B. Russell, vol. ii.; Differential Geo- 
metry, Dr. A. R. Forsyth, F.R.S.; Statics, Prof. 
S. L. Loney; Structure of the Atmosphere, C. J. P. 
Cave. . Gauthier-Villars (Paris).—L’Electricité 
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principes de l’Analyse, R. Adhémar, Tome i., illus- 
trated; Grandeur et Figure de la Terre, J. B. J. 
Delambre, illustrated; Calcul des  Probabilités, 
Carvallo; Passage de lElectricité a travers les Gaz, 
Thomson; Lecgons d’Optique, Drude, Tome 
W. Heinemann.—Introductory Electricity and Mag- 
netism, C. W. Hansel; Experimental Mensuration : 
an Elementary Text-book of Inductive Geometry, 
H. S. Redgrove. Hodder and Stoughton.—The Elec- 
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Solids, H. A. Wilson. H. Holt and Co. (New York). 
—Elements of Physics, E. H. Hall. T. C. and E. C. 
Jack.—Radiation, Dr. P. Phillips; Light, according 
to Modern Science, Dr. P. Phillips; Weather-science, 
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Maunder. Longmans and Co.—A Treatise on the 
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Salmon, F.R.S., new edition, revised by R. A. P. 
Rogers, 2 vols., vol. ii. Macmillan and iGow Eid. 
Studies in Terrestrial Magnetism, Dr. C. Chree, 
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activity, Prof. W. H. Bragg, F.R.S. (Science Mono- 
graphs). Mills and Boon, Ltd.—Graphs in Arithmetic, 
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John Murray.—A New Geometry, A. E. Layng. R. 
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NATURE 
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The Carrier Problem in Infectious Disease, with 
Particular Reference to Enteric Fever, Diphtheria, 
Cerebro-spinal Meningitis, Bacillary Dysentery, and 
Cholera, Drs. J. C. G. Ledingham and G. F. Petrie. 
| Bailliére, Tindall and Cox.—Veterinary Toxicology, 
an) 
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| fir die Pathologie, Prof. A. Biedl. 
ii. | 
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and Co.—A Manual of Surgical Treatment, . Sir 
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Burghard, with the assistance of T. P. Legg and A. 
Edmunds, new edition, in five volumes, vol. ii. 
Macmillan and Co., Ltd.—Anzsthetics and_ their 
| Administration: a Text-book for Medical and Dental 
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| ing and Combing, 
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