54 THE MICROSCOPICAL NEWS. 
illustration of this object, the spiracle of the Dy¢iscus marginalis, 
which will more nearly represent the organ in its natural state, as 
another illustration of the usefulness of photo-zincography. 
NOTES AND QUERIES 
MicroscopicaL Mountinc.—At the January meeting of the 
instruction class of the Manchester Microscopical Society the 
demonstrators showed the nature of Balsam and Benzol as a 
mounting medium. Mr. Mestayer cut a number of wood sections, 
both transverse and longitudinal, of the Pine, Walnut, and Ma- 
hogany, giving a few hints as to the method of mounting. He also 
mentioned the carrot as a simple and satisfactory bedding material 
for many substances. 
HERTFORDSHIRE NATURAL History Socirry.—We have just 
received the August and November Transactions of this Club. In 
the former appears a very interesting paper ‘‘ On Methods of Pre- 
vention of Insect Injury,” by Eleanor A. Ormerod, F.M.S., which 
should be read by all agriculturists ; it is continued in the Novem- 
ber number on page 80. In this latter number also there is an 
account of a new flagellate animalcule, Chlorodesmos hispida, ilus- 
trated with a well-executed plate. 
MANCHESTER CRypToGamic Society.—At the last meeting of - 
this Society the Annual Report was read, briefly enumerating the 
various discoveries made by the members during the past year and 
the various localities recorded for rare species. 
The Hon. Sec. made some observations on specimens of Pottia 
cavifolia, which had been sent from Llandudno, and he also ex- 
hibited specimens of P. canina from the Continent, which Dr. 
Wood thought possibly might be found to occur in Britain, if suffi- 
cient attention was paid to the genus. 
The interesting continental Phasomitrium subsessile was exhibited. 
The specimen had been gathered by Prof. Schimper in Styria. It 
was a well-marked species and typical of a distinct subdivision 
of the genus Pottia. It is, however, not yet known as a British 
Moss. 
Mr Atkinson exhibited specimens of Peziza aurantia, which he 
had seen growing in large beds near Bowness, in Sept. last. 
After the election of officers the meeting was brought to a close. 
a 
