NOTES AND QUERIES. 215 
THE JOURNAL OF THE PosTaL MicroscopicaL SocieTy.—This 
Journal, which at the commencement of its third volume added 
“The Journal of Microscopy” to its title, continues to be exceed- 
ingly well conducted, and we hope it has the hearty pecuniary 
support of all working microscopists. ‘The July number contains 
the following articles:—Some new Infusoria from Bristol; the 
Collection and Preservation of Diatomacez ; some further re- 
searches on Tubifex ; the Action of Ammonium Molybdate on the 
Tissues of Plants; the Microscope in Palzeontology; Diamonds and 
their History ; the Study of the Larval forms of the Crustaceze ; 
Hydrozoa and Medusz, an examination of the External Air of 
Washington ; on the Peronosporez ; Selected Notes from the So- 
ciety’s Note Books, &c., &c. 
On page 194, a correspondent, signing himself ‘‘ A President,” 
makes the following statement :—“ Jz plain sober truth there ts at 
present no recognised organ in whith the various papers and other 
matters of interest can be recorded.” We are surprised the Editor 
did not call attention to Zhe Microscopical News which 7s the re- 
cognised organ of the Liverpool, Manchester, Bolton, North of 
England, and other Microscopical Societies. Other Societies com- 
menced well in sending their proceedings, then came abstracts, then 
short notes, and finally nothing. There are more difficulties in the 
way of publishing a record of several Microscopical Societies than 
“A President” seems to be aware of ; experience must teach these, 
and we hope that if the “ Journal of the Postal Microscopical So- 
ciety” undertakes this task it will be more successful than we have 
been. At the end of the present year we may perhaps say some- 
thing more on this subject. 
The American Monthly Microscopical Journal publishes a list 
of the preparations circulated in the American Postal Club, with 
notes thereon: could not this be done in the English Society ? 
NOTES AND QUERIES. 
As we wish to relieve ourselves of all purely 
business transactions in connection with the Journal, 
subscribers are kindly requested to pay the amount 
of their subscriptions to Messrs. Brook & Chrystal, 
11, Market-street, Manchester. 
_ ALL matter intended for publication must be sent before the 12th 
of each month to the Editor, Mr. George E. Davis, Belmont, 
Thorncliffe, nr. Sheffield. 
BLACK VARNISH.—There was a black varnish which seems to have 
