i901] MICROSCOPICAL JOURNAL. 111 
fuchsine stain for fifteen minutes, then decolorized in 
weak sulphuric acid (sulphuric acid, 10 ¢.c.; distilled wa- 
ter, 30 ¢.c.), and afterward rinsed in 60 per cent alcohol 
and washed in a large quantity of water toremove the acid. 
The sections may then be counterstained with methyl blue 
then dehydrated in absolute alcohol, cleared in cedar oil, 
and mounted in Canada balsam. The bacilli will then be 
stained red and the surrounding tissue blue.—J. R. L. 
Dizon. 
EDITORIAL. 
GOULD’s ILLUSTRATED DicTionaRy OF MEDICINE.—Asa 
cade mecum of everything pertaining to the microscope, 
either for the amateur or professional worker, Gould will be 
found most satisfying. Under the definition “Microscope” 
is an illustration with each part named, and each term 
applying to the science is properly defined. Under the 
heading ‘‘Stains” is an elaborate article giving all Fluids 
used for fixing and hardening, Media for examination and 
preservation, etc., and methods employed in biologic in- 
vestigation. This was written by an expert, and submit- 
ted to a practical microscopist before printing. The form- 
ula and uses of each fluid or preparation is carefully stated 
and its synonym mentioned, together with the authority 
recommending its use, if such use be doubtful. 
PreRsonaL.—The Popular Science Monthly for May 
opens with an article by Dr. W. J. Holland, Director of 
the Carnegie Museum at Pittsburg, describing the insti- 
tution which Mr. Carnegie has so liberally endowed, and 
which it is said he intends to make the greatest institu- 
tion of its character in the world. The article is fully il- 
lustrated, and includes plans for the enlargement made 
possible by Mr. Carnegie’s recent gift of $3,000,000. Dr. 
Holland has long been one of our subscribers. 
Exuibits.—The Photography and Microscopy section 
