132 THE MICROSCOPE Sept 
SCIENCE GOs STP: 
Staining Tubercle Bacilli._The method first proposed 
by Glorieux is the most rapid, anda very slight modifi- 
cation of it makes it one of the best.—— 
It is as follows: 
Fuchsin stain (Neelson’s modification.) 
Puchsin. 4) sepdeSocreyctviney Bobet ian Bet er or 
Atssolute-alcohol.-°<.- parts 
€rystathzed:cearboliciacid s)14* tenis at eee 5 parts 
Wateksdistilled ek oe ete ee 100 parts 
Dissolve the fuchsin in the alcohol, add the carbolic acid, 
and finally the water. 
The blue stain is so constructed that it obviates the old 
bleaching solution of the earlier methods. It is made 
thus: 
Absolute alcohol. pene ty 495s be) el ees ee to parts. 
Sulphuric acid .¢. pred os ee a oo ee 
Water, distillea Se pen hii e: ae eee 2. J50.-Pants: 
Methyl blue, sufficient. 
Mix the acid and water, and after the mixture cools 
down, add the alcohol. Now add methyl blue until it no 
longer dissolves (1. e., to saturation) and filter. The object 
to be stained is left in the fuchsin for thirty seconds, and 
is thence removed directly into the blue stain where it is 
left until the red tint is removed, or from 30 to60 seconds. — 
—National Druggist. 
PECENT PUBIC AterOiiae 
Current Literature for August has portraits and a 
highly interesting notice of the three Darwins—Charles, 
the greatest scientist of the Victorian era, his grandfather 
Erasmus, the great physiologist, and George Darwin; sec- 
ond son of Charles, foremost authority in the study of 
tides, and on the wonderful astronomical theory of Tidal 
Frictions. 
Foramenifera.—In the current number of Revista Itali- 
ana di Paleontologia Dr. C. Fornasini summarizes the 
contents of several recent writing on the Rhizopods. 
