WHELDON & WESLEY, LTD., 
38, Great Queen Street, 
KINGSWAY, LONDON, W.C. 2. 
W HELDON © WESLEY, LTD., are open to 
purchase libraries, sets of periodicals and early 
printed books. 
j They offer expert assistance for the valuation or 
sale of books generally. 
They will send quotations for books in any depart¬ 
ment of the natural and pure sciences from their 
! stocks at 38, Great Queen Street and 28, Essex Street, 
I Strand, W.C. 2. 
Messrs W. HEFFER & SONS, Ltd., Booksellers, CAMBRIDGE 
are open to purchase at current values, Complete Sets or Long Runs of 
the following: 
Annales Agronomiques. 
Annales des Sciences Naturelles. 
Annals of Botany 
Berichte d. Deutschen Botanischen 
Gesellschaft. 
Botanische Zeitung. 
Bulletin de la Societe Botanique. 
Centralblatt fur Agrikulturchemie. 
Centralblatt fur Bakteriologie. 
Curtis. Botanical Magazine. 
Deutsche Landwirtschaftliche 
Presse. 
Edwards. Botanical Register. 
Flora od. Allgem. Botanische 
Zeitung. 
Gartenflora, hrsg. v. Wittmack. 
Jahresberichte der Agrikultur¬ 
chemie. 
Journal of Botany. 
Journal of Ecology. 
Journal fur Landwirtschaft. 
Landwirtschaftliche Jahrbucher. 
New Phytologist. 
Pringsheims Jahrbiicher. 
Revue generale de Botanique. 
Revue Horticole. 
Roses, Fine Books on, English and 
Foreign. 
Saccardo Sylloge Fungorum. 
Zeitschrift des Vereins der Deut¬ 
schen Zucker Industrie. 
Zeitschrift fur Botanik. 
Librarians, Executors, and others desirous of disposing of the above 
or any other Scientific Periodicals and Books, including complete 
Libraries (both English and Foreign), are invited to communicate with 
them. 
They also invite enquiries for Scientific Books and Periodicals of which 
they carry an extensive stock. 
Nearly ready: Catalogue of Scientific Books and Publications of 
Learned Societies. Post free on application. 
Telegrams and Cables “ HEFFER, CAMBRIDGE ” Telephone 826 (2 lines) 
