_ Microscopy. 1041 
er has been found to be unreliable in some re- 
Spects, Carbolic acid warm is injurious to some AC ain 
the dermis of vertebrates. The alcoholic solution is a perfectly 
tarmless fixative. The method of using, which differs in im- 
ee points from the one prescribed by Giesbrecht, is as 
X ees are arranged dry, and then gently pressed down by 
s of an elastic spatula (horn or metal) until they lie flat and 
| Sections are placed while the a 
and then lie as they fall. 
ire reference to collodion, Mayer remarks t 
hat it depends 
loyed whether 
a ee 
ecesesseceossesree® 
ten oe, igredients are mixed and thoroughly shaken together, 
this mise a 224 Kept in a well-cleaned bottle. Mayer has kept 
have proy a three years in a good condition. Other antiseptics » 
~ Proved far less efficient than salicylate of sodium. 
ayer em p ea the extraction of sublimate from tissues 
l gianti oys tincture of iodine. The tincture is added in 
S often ; ties to the alcohol in which the objects are preserved, 
en as the color fades. | 
