766 



SUMMARY OF (TRRKNT KRSEABCHB8 RKLATING TO 



preparations were stained with Bolution of acid Rubin and orange G in 

 alcohol and glycerin, or they were first stained with Heidenhain's iron- 

 uliiiii bsemotoxylin. 



(8) Cutting:, including- Imbedding- and Microtomes. 



Reichert's Microtome with Handle.* — This instrument (fig. 180) is 

 a modification of the microtome working in conical bearings previously 



Fig. 180. 



described in this Journal.t The new features are the handle and the 

 base, which is sufficiently heavy to insure stability. 



Flatters' Microtome. — This microtome % (fig. 181) devised by 

 A. Flatters is made of brass ; the tube or well is 3 in. deep and the 

 extreme diameter 1 in. The spindle is of the same length, the screw 

 having 28 threads to the inch. The spindle is fitted with a thumb- 

 screw at the lower end to admit of the toothed disks being easily changed. 

 A spring stop, the tension of which can be adjusted, works on the teeth 

 of the disk, thus insuring a series of sections of uniform thickness. The 



* Special Catalogue, 1905, p. 9. 

 t See this Journal, 189J, p. 499. \ Exhibited at the October Meeting, 1905. 



