! 



Fig. 68. 



Brass plate for heating glass slides, p. 43. 



ill retort-stand tc 

 watch-glasses. S:c. 



Pig. 70. 



Spirit lamp, with "wire stand 

 attached, p. 43. 



F:g. 71. 



Fig. 72. 



Tripod wire stand for sup. 

 porting platinum, p. 43. 



Porcelain basins arra.tr- 

 a water bath. p. -14. 



Fig. 74. 



Small copper bath, with ring (a) to diminish aperture, p. 44. 



Fig. 75. 



Fig. 77. 



Double-edged scalpel for cutting thin sections, p. 44. 



Fig. 76. 



New form of section knife, p. 44. 



Section of Fig. 76. 

 through a b. p. 44. 



[To face page 44. 



