NORTH AMERICAN 
MUSCI PLEUROCARPI 
/ssues of my North American Musci Pleurocarpi, suspended 
during the war, will be completed by Nos. 476 — 500 to be is- 
sued to present subscribers. A Supplement will be issued, con- 
taining only species or varieties not in the original 500, or fruiting 
plants of forms originally issues as sterile. Price $1.50 per fascicle 
of 10 numbers. 
Early in 1 922 will be issued the first 25 numbers of a new ser- 
ies, North American Musci Ferfecti, which will contain only 
specimens having at least 1 0 mature capsules in good condition 
when collected. The calyptra and aperculum of some forms will 
undoubtedly fall during drying. Price $12.50 per 100, or 15c each. 
A. J. GROUT, New Dorp, Richmond Bor.. NEW YORK 
New Check-List of North American Hepaticae 
By Miss C. C. Haynes and Dr. A. W. Evans 
Lists all the 438 species known in 19 18 to occur in the United 
States, Canada, and Arctic America. Printed in form suitable 
for marking desiderata or exchanges. 
Prices: jc each, 25c per dozen. 
MISS C. C. HAYNES - - - - HIGHLANDS, N. J. 
CLUBBING OFFER 
The rates below, made in cooperation with Dr. Grout for subscription to 
the Bryologist or membership in the Moss Society, apply ONLY to remittances 
made at one time, in advance, to Mr. Chamberlain. They do NOT apply to 
accounts received through agents or dealers. 
Moss Flora of N. Y. City and Bryologist, $2.10; with membership, $2.35. 
Mosses with Handlens, Ld. ii, and Bryologist, $2.75; with membership, $3.00. 
Mosses with Handlens and Microscope, unbound, and Bryologist, $6.50; with 
membership, $6.75. Bound copies, 75c extra. 
EDWARD B. CHAMBERLAIN, 18 West 89th St., NEW YORK 
