24 
THE NORTHERN MICROSCOPIST. 
EXCHANGE CoLuMN, continued, | SALE AND EXCHANGE COLUMN 
STARCH from rhizome of male fern 
wanted,unmounted. Exchange general 
slides; state wants. Also starch from 
yam wanted. The EDITOR. 
Morris’ RoTATING STAGE. This 
for exchange. Well mounted slides of 
algzee wanted. Adpha, care of Editor 
THE NORTHERN MICROSCOPIST. 
JOURNAL OF THE RoyAL MICROo- 
SCOPICAL SOCIETY. The first 5 Nos., 
of 1880, published at 4s. each. What 
offers of slides? fungi preferred. 
“Fungus,” care of Editor NoRTHERN 
MICROSCOPIST. 
SOWERBY’s handbook of the Aqua- 
rium in exchange for double stained 
wood sections. What offers? B.C., 
care of Editor NORTHERN MICRos- 
COPIST. 
MyxomyceTEs for other slides of 
Micro fungi. Arcyria punicea and 
several species of Trichea offered. W., 
care of Editor NORTHERN MICROs- 
COPIST. 
ANATOMICAL AND PATHOLOGICAL 
sections in exchange for bone sections. 
Henry Vial, Crediton. 
For slide of hop mould send other 
slide of interest to John Boggust, Junr., 
Alton, Hants. 
DIATOMS, well mounted, from Peru- 
vian guano, in exchange for other good 
slides. Send lists to W. Hamilton 
Reid, Eaglescliffe, Yarm-on-Tees. 
Mosses wanted. Mosses of the 
genus Andreza wanted in exchange 
for other British mosses. J. C., 33, 
Plymouth Avenue, Longsight, Man- 
chester. 
ODONTOPHORES of several species 
of land shells in exchange for good 
named varieties of British shells. J. 
D. Burterell, 2, St. John St., Beverley. 
FOR APPARATUS, BOOKS, Ere, 
Advertisements in this column areinserted 
at the rate 4d. for each 12 words or portions 
of twelve. 
Advertisers may adopt a nom-de-plume 
under care of the Editor, but in this case all 
replies must be accompanied by a penny 
stamp for each letter, to cover postage. 
All Advertisements intended for insertion 
in this column must reach us before the 14th 
of each month, 
—— 
For SALE, a half-inch objective by 
Dancer, with collar adjustment, will 
resolve angulatum. Price £2, or will 
exchange for a good herbarium of cor- 
rectly named mosses ofabout 80 species 
and one of lichens of 100 species. “ D.” 
care of Editor NORTHERN MIcRos- 
COPIST. 
Books for Sale. Quekett’s Histology, 
Gosse’s Evenings with the Microscope, 
Hogg on the Microscope, last edition. 
What offers? C.J. Jones, 15, Princess 
Street, Manchester. 
WENHAM’s last illuminator for dia- 
toms, new. Wanted 12 slides of well 
mounted mosses. “Micro,” care of 
Editor NORTHERN MICROSCOPIST. 
OBJECTIVE, quarter-inch, with collar 
adjustment, an excellent glass. Price 
£2. Also an aquarium, 22 x 12 x 
15 inches. Price 20s. R. A. B., 6, 
Dover St., Higher Crumpsall, Man- 
chester. 
For SALE, a separating objective, 
2 and 1 inch, by Dancer. Price 25s. 
Also a half-inch, by Dancer, at same 
price. J. C., care of Editor NoRTHERN 
MICROSCOPIST. 
MONOCULAR MIcrosCcoPE by Harris 
and Sons, Museum Street, three objec- 
tives, 3, +, 3, condenser, live-box, etc., 
in mahogany case, cost £8. Wanted 
geological specimens, especially bronze 
and flint implements. A. H. Scott- 
White, 99, Waterloo Crescent, Nott- 
ingham. 
