268 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



is inclined backwards on the trunnion axis as far as it will go, and 

 the feet are tiirned back under the heel. Thus folded, the Microscope 

 fits into a leather case 7 in. X 5 in. x 3 in. 



The stage, which is only ^ in. thick, contains between its upper 

 and lower plates a diaphragm with four circular apertures, which is 

 rotated by the finger acting on its projecting milled edge at the right- 

 hand side. 



Deecke's Large Microscope. — Br. T. Deecke, special pathologist 

 ol the New York State Lunatic Asylum, sends us a description of this 

 instrument (figs. 39-41)* from which the following is condensed : — 



The stand became a necessity after he had succeeded in making 



Fig. 39. 



sections of l-400th to l-600th in. thickness, and upwards of 6 in. in 



diameter, in order to facilitate topographical investigations of minute 



* The figures are drawn to a scale of about l-12th actual size. 



