544 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



The case, made to hold the instrument with bottles of solutions, 

 blood-counting slide, pipettes, and other items, measures 8 in. by 4 in. 

 by If in., and weighs under 2 lb., but the Microscope can be fitted by 

 itself in a case measuring 6J in. by 3^ in. by 1 T 3 7 in., and the weight 

 with two objectives would then be under 1^ lb. 



Fig. 123. 



Beck's Portable Continental Model.* — This Microscope, known as 

 Stand No. 1123, is shown in figs. 125 and 126. It has a sliding coarse 

 adjustment, and a delicate micrometer-screw fine adjustment. The stage, 



* Messrs. K. and J. Beck's Catalogue, London, p. 18. 



