THE CAMBRIDGE 
SCIENTIFIC INSTRUMENT COMPANY, 
LIMITED, 
CARLYLE ROAD, CAMBRIDGE. 
Manufacturers ot Physical Apparatus 
of every description. 
CHRONOGRAPH FOR LABORATORY USE. 
A strip of Morse paper 12*5 mm. wide is drawn by means of a 
motor under tliree small inking wheels attached to the armatures of 
three electromagnets. One of these can be connected to a clock making 
contact every second ; the other two magnets are used for recording the 
physical quantities under- observation. This instrument will be found 
extremely useful and thoroughly reliable. ^ 
Instruments for measuring and testing the chief 
physical characteristics of the Human Body. 
Illustrated Catalogue of Physical and Electrical Instruments, also of 
Physiological Apparatus, sent Post Free on application. 
Address all communications to 
INSTRUMENT COMPANY, 
CAMBRIDGE. 
