TRADE NOTES 
With a little more paid advertising the Bryologist will become en- 
tirely self-supporting. Articles advertised are such as are known to 
the editor to be thoroughly reliable. By buying of our advertisers 
you will help yourself and the Society, but always mention that you 
saw the ad. in the Bryologist, When goods are bought of a dealer, 
drop a postal to the editor. 
BOOKS FOR SALE. 
By A. J. Grout, New Dorp, Richmond Co., New York. 
Perfect copy Tuckerman’s Synopsis North American Lichens. Pt. I_^ $ 8.00 
(iray’s Plants Wrightianae 3.00 
Repoit of the State Botanist of New York, 1895, ’96, ’97, ’98, ’99 
Vasey’s Grasses of the Pacific Slope (Pts. I and II, Bull. No. 13, U. S. Dept. 
Agriculture) 3.75 
Grasses of the South-west, by Vasey, (Bull. No 12, U. S. Dept. Agriculture) 3.75 
Botany of The Death Valley Expedition, by F. V. Coville (Vol. IV. Con- 
tributions from U. S. National Museum, 1893) 3.00 
Fern Bulletin, Vols. VI Vll and VII, per vol. 1.00 
Memoirs Torrey Botanical Club. Vols. I-XIII 35.00 
Bulletin Torrey Botanical Club, XVIII to XXXIII (except XXVII), XIX 
and XXIV bound in buckram 16.00 
Plant World. Vols. I-X 10.00 
Fresh Water Rhizopods, by Leidy 6.00 
Lesquereux and James Manual North American Mosses 6.25 
Barnes and Herald, Keys to N. A. Mosses, cloth 2.00 
Supplement to Index Bryologicus, by Paris 1.00 
Gray’s Manual, First Edition, 1848 4.00 
All single volumes post paid. 
Loeske Studien sur vergleichenden, morphologie und phylogenetischen Sys- 
tematik der Laubmoose. This is a most interesting and suggestive treatise on a lit- 
tle considered but important subject. Kept in stock, $1.50 post paid. 
THE HALL MIRROR CAMERA 
A NEW IDEA IN REFLEX CAMERAS— METAL BOX 
Size 3}^ X 5)4 
Size 4x5 
Size 5x7 
Size 2)4 X 4^ Diamond 
$35.00 without lens 
$30,00 without lens 
$50.00 without lens 
$25.00 with lens 
Any standard size plate-holder, also film pack, fits tiie Hall Mirror Reflex Camera. 
Ask your dealer to order one for you. 
THE HALL CAMERA COMPANY 
MANUFACTURERS 
OFFICE AND FACTORY 
14 and 18 Dunham Place, - Brooklyn, New York 
