



IMPROVED CHEMICAL 

 MICROSCOPE 



Constructed after the specifications of Dr. E. M. Chamot, of Cornell 

 University, is designed for work in all branches of Micro-Chemistry and in 

 Commercial Laboratories, being specially adapted for examination of foods 

 and drugs as well as chemicals. High-power objectives may be used with it. 

 Our quick-changing nosepiece is regularly supplied with this instrument, as 

 it is desirable under ordinary conditions to have but one objective on the 

 stand at a time. 



Several important improvements have been incorporated in this model, 

 giving it a wider range of usefulness. 



Price as Illustrated, complete .£17 If) fi 

 with Polariser and Analyser, ©wi ■ ■** w 



tto, with 3 Objectives, 4 £9A 16 8 

 Eyepieces, and 3 Rings : *#^*' ■** *» 



Ditto, 



Descriptive Llat on Application. 



THE 



BAUSCH & IAMB OPTICAL CO., 



Contractors to British and Foreign Governments, 



19 THAVIES INN, HOLBORN CIRCUS, LONDON, 



LC, 



Our Apparatus may be obtained through all Dealers. 



A Monthly Record of Science in all its Branches. 



Each number consists of at least 40 large quarto pages of articles 

 and notes by authorities In their respective subjects. 



PROFUSELY ILLUSTRATED. 



CONTENTS OF AUGUST ISSUE: 



The Indian Earthquake of 1905,-The Optical Convention, 1912.— ■• 

 Matter Indestructible f— Everyman's Astronomy.— The Canadian Rutted 

 arouse.- The Fertilisation of the Fig — The Subtlety of Life.— English Lake 

 Dwellings,— The Discal Florets of Seneclo Jacoboc/i.— Venus: The Flanetpf 

 Mystery.— The Knowledge of the Makers of Scientific Instruments in 

 the Seventeenth and Eighteenth Centuries.— Solar Disturbances during 

 June.— The Face of the Sky for September. — Notes (Astronomy j Botany? 

 Chemistry; Geology; Meteorology; Physics; Zoology).— Microscopy.— Scientific Ph©tO« 

 graphy.— Reviews of Books, Etc. 



With 32 illustrations. 



THROUGH ANY BOOKSELLER. 



MONTHLY, ONE SHILLING net. Annual Subscription, 15/-, poit free anywhert. 



Offices: 42, BLOOMSBURY SQUARE, LONDON, W.O. 



(xvi ) 



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