NOTICES TO CORRESPONDENTS, ETC. 23 
NOTICES TO CORRESPONDENTS. 
All communications should be ad- 
dressed to the Editor, Mr. George E. 
Davis, Dagmar Villa, Heaton Chapel, 
Stockport ; and matter intended for 
publication must reach us not later than 
the 14th of the month. 
All communications must be accom- 
panied by the name and address of 
the writers, not necessarily for publica- 
tion, but as a guarantee of good faith. 
Cheques and money orders to be made 
payable to George E. Davis, the latter 
at the Manchester Chief Office. 
G. S. T.—Thanks ; we will insert it 
in our next issue. 
J. R.—Huxley and Martin’s small 
but excellent treatise upon Practical 
Biology will, we think, suit you. Its 
price is six shillings. 
GEORGE Woop.—In reply to your 
query, we intend giving at least an 
abstract of the proceedings of as many 
Societies as possible in the North. It 
is also intended to print papers 27 ex- 
zenso whenever they appear of sufficient 
interest to the bulk of our readers. 
James Hitut.—If you look at this, 
our first number, you will probably 
find your query answered. 
James FowWLER.—We do intend to 
illustrate THE NORTHERN MICROs- 
CorisT, and thank you for the sug- 
gestions contained in your letter. 
BRITISH WORKMAN.—We will see 
if it is possible to have some articles 
on the selection of a Microscope ; but 
in doing so, we are afraid we shall not 
be able to please everybody in so guid- 
ing their choice. 
THOMAS QUANT.—There is a small 
sixpenny brochure, published by Mar- 
shall, Japp, and Co., on ‘‘ Ferns and 
Ferneries,” which would suit your 
requirements. Most works upon ferns 
do not give instructions for their prop- 
agation. 
EXCHANGE COLUMN FOR 
SLIDES AND RAW MATERIAL. 
Communications not exceeding 24 words 
are inserted in thiscolumn free. They must 
reach us before the 14th of each month. 
Exchangers may adopt a nom-de-plume under 
care of the Editor, but in this case all replies 
must be accompanied with a penny stamp 
for each letter to cover postage, 
MARINE ALG, and other well- 
mounted slides for exchange. Wanted 
mole-fleas and other parasites. Send 
list. C. J. Jones, 15, Princess-street, 
Manchester. 
JECIDIUM RUBELLUM and urticz 
wanted in exchange for other raw ma- 
terial. State wants. F. McKenna, 
Shaw Heath, Stockport. ; 
MICRO-CHEMICAL SLIDES, Murexide, 
Hippuric Acid, Salicine, Santonine, 
Brucine, &c., in exchange for petro- 
logical or any of geological interest. 
A. H. Scott White, 99, Waterloo 
Crescent, Nottingham. 
DUuPLICATES for exchange. Will 
Microscopists send list in exchange for 
mine. “D.,” care of Editor, Northern 
Microscopist. 
GENERAL SLIDES in exchange for 
others. Mosses and lichens preferred. 
H. Baker, The Schoolhouse, Walker- 
ingham, near Gainsborough. 
SECTIONS of endogenous and exo- 
genous stems, mostly exotic, well- 
mounted, and single and double-stain- 
ed, for other well-mounted objects. 
W. Blackburn, Woodlands, Chorlton- 
cum-Hardy, Manchester. 
ANT-LIon.—For a well mounted 
slide of any rare moss, an ant-lion will 
be exchanged — unmounted. Write 
first to “Trochus,” care of the Editor 
NORTHERN MICROSCOPIST. 
