ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



479 



of silver deposit. The coli culture produces a full and marked reduction, 

 of the salt, but with the typhoid culture only a very faint deposit is, in 

 general, obtained. 



Kingsford'sTOlassUTroughs. — For the description and purposes of 

 these troughs (figs. 76, 77) see ante, p. 383. 



Fia. 76. 



Fig. 77. 



Bbonising Laboratory Tables.* — "VV. J. Wood states that any kind 

 of wood may be stained by the following method : (a) 250 grm. of 

 anilin chloride dissolved in 1 litre of water. This solution is applied daily 

 for 2 or 3 days, (b) 125 grm. of sulphate of copper dissolved in 80 grm. 



* Jouro. Quekett, Micr. Club, Lx. (1904) pp, 67-8. 



