638 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



The adjustment of the apparatus (fig. 172) is by free band motion. 

 Tbe observer's right hand grips the telescope with its divided circle 



Fig. 170. 



Fig. 171. 



Fig. 172. 



(0°-180°) while his left hand guides the arm A attached to the vernier 

 and to the prism. The vernier reads to 1'. The prism is provided with 

 a movable stop for changing the illumination. 



B. Technique.* 

 CI) Collecting: Objects, including- Culture Processes. 



New Medium for Cultivating Diphtheria and other Organisms.f — 

 Herr P. Glaessner, iu a dissertation on the value of some new albuminous 



* This subdivision contains (1) Collecting Objects, including Culture Pro- 

 cesses ; (2) Preparing Objects ; (3) Cutting, including Imbedding and Microtomes ; 

 (4) Staining and Injecting ; (5) Mounting, including slides, preservative fluids, &c. 

 (6) Miscellaneous. 



t Centralbl. Bakt. u. Par., l te Abt., xxvii. (1900) pp. 724-32. 



