2 38 THE MICROSCOPICAL NEWS. 
improvement in this important accessory, and it is certainly not the 
least of its advantages, that it will fit any ocular of English pattern. 
It can be made to fit foreign stands also. 
GLYCERINE Mounts.—Much has been said against glycerine 
mounts and their leaky propensities after a lapse of time. We have 
lately seen some glycerine preparations put up ten years ago, and 
they are to-day as tight as when first mounted. The only varnish 
used for cell and cement was white zinc varnish: we have many 
glycerine mounts in our cabinet, and have come to the conclusion 
long ago that if every care were taken to clean away the superfluous 
glycerine there would be no more complaints of leakage. No 
cement will adhere where there is even the slightest film of glycerine. 
MiLk ANAtysis.—A letter from Mr. J. B. Dancer in the Man- 
chester Guardian of June 29th contains the following :—In a paper 
communicated by the writer to the Manchester Literary and Philo- 
sophical Society in November, 1859, the microscopical examination 
and some experiments on milk were described. Many years ago 
some milk was sent to the writer for examination from a public in-. 
stitution in this town, with a statement that something had been 
seen moving in it. On submitting it to the microscope it was found 
to contain numerous larve of the gnat and almost every variety of 
pond life, including alge and confervz, &c., it being evident that 
the milk had been adulterated with ditch water. 
A RoyaL AuTrHor.—Prince Louis Ferdinand, a cousin of the 
King of Bavaria, who has already distinguished himself by extensive 
studies in more than one branch of science, has recently published 
a ‘Monograph on the Tongue,” considered with reference to its 
comparative anatomy in man and in several kinds of other animals. 
Some of the microscopical and physiological investigations which 
have served as the basis of the work were conducted under Professor 
Riidinger, and the remainder in the Prince’s own laboratory at 
Nymphenburg. ‘The work has 105 splendid illustrations, and is 
published by Theodore Riedel, of Munich. 
MANCHESTER CRyPTOGAMIC SocieTy.—At the last meeting of 
this Society Mr. Cash exhibited the rare British Moss Gymmos- 
tomum calcareum in fruit, which hitherto had only been found in a 
barren state. The fruiting specimen had been gathered by Mr. A. 
Holt in Derbyshire during the present month, 
Dr. Carrington placed upon the table a large number of letters 
from eminent Cryptogamic botanists who had been in correspon- 
dence with the celebrated Lancashire botanist, Edward Hobson. 
Many of the letters had reference to the collection of Mosses by 
Hobson, copies of which are now in the Free Reference Library 
and Chetham College. Dr. Carrington read numerous and in- 
