1892. ] ‘Notes and News. 427 
AMONG THE REPORTS of the large raids staff at work on the 
Government Experiment Farms A en , Canada, for 1891, aes is- 
Sah HE abhi of celloidin inbedding will ae sia set forth im 
extenso in ee ) nt articles; one . Busse in Zeiéschrift fir wis- 
- I-51, 
schluss ad F shea piaastiches Objec 
A uist of Ohio Uredinez and a f ict account of wheat scab, by 
Miss Freda Detmers, together with a short description of Lactuca 
Scariola, by C. E. Thorne, make up bulletin 44 of the Ohio Experi- 
ment Station. The list of rusts contains about 68 species. The sg ts 
and localities are given, and also a few additional notes. There is 
evidence of a lack of careful proof ea ie and the cuts “ustrating 
roles and wheat scab are wretchedly p 
PORTANT monograph of one of the sith pee gs age le = 
lower plats, the Oscillariee, appears in the Anna s des Scien 
oc cetlante VII, xv, p. 263-368, with five plates. ee wi the earlier 
monograph of the heterocystic Nostocacee by Bornet and Flahault, 
gives tolerably ee prcronroie for the determination of these plants. 
If some one would now put i compact form a basta of ow 
American species ith psaaytie: ae it would be serviceable. 
Dr. Byron D. HatsTeD is soon to issue a cen sa of weed-seeds. 
The seeds will be in convenient vials, held ina tray which is about the 
' ods of Ta 
3 isturb the 
__ stricta. _1n the proper condition, the least pine Gee will cause th 
= Seeds be ex oy with considerable force, and thrown two My gts 
feet. Mr. Walker finds see the outer seed-coat is the agent in 
dissemination, being a translucent shin : — 
naif tightly over the ee suddenly re elestically A 
en it bu ee sts. Further details can be had from Froc 
ass are described by 
rved he Cornell Expen- 
. as ost serious one, called winter bi blight, cate ie 
acterial nature. Growth is checke | 
defined yellowish ake later turning dark, the leaf cols an petal 
‘Stiff, the edges drawing comansnt giving the plam 
