45 
Among others who have made presentations to the Library 
the following should be mentioned as the donors of papers by 
themselves, or, in a few cases, of other publications :—Dr. S. 
Agharkar, Prof. E. B. Babcock, Dr. P. A. van der Bijl, Prof. 
S. R. Bose, Mr. H. 8. Carey (The Carices of the Northern United 
States, by John Carey, with MS. additions by the author), 
Dr. E. Chiovenda (5 papers), Prof. R. Chodat (numerous publi- 
cations from the Institute of Botany, University of Geneva), 
Mr, J. L. Collins, Mr. M. T. Dawe, Dr. L. Diels (9 papers), Mr. H. 
N. Dixon (Lichens du Mexique, by M. Bouly de Lesdain), 
Mr. Kinsley D. Doyle (Contribucién al conocimiento de los arboles 
de la Argentina, oy S. Venturi and M. Lillo), Mr. 8. T. Dunn 
(2 papers, by N. H. Cowdry), Lt.-Col. F. R. Durham (Ezcur- 
stonsflora fiir Télz und Umgebung, by A. Hammerschmid), 
Mr. Gunnar Erdtman, Dr. I. B. Pole Evans, Dr. C. E. Fairman, 
Mr. O. A. velo Mr. J. S. Gamble (76 pamphlets by various 
authors), Mr. R. W. T. Gunther, Prof. R. A. Harper, Prof. L. 
,Hauman, Mr. A. Howard, Lady Hooker (several publications of 
the Royal Academy of Belgium), Prof. F. Kranzlin (21 papers) ; 
Prof. G. Lagerheim (Studien iiber Konstruktions-typen und Ent- 
wicklungswege des Embryosackes der Ahgiospermen, by B. Palm), 
Mr. C. G. Lloyd, Capt. J. Loutit (The British Gardener’s Director, 
by J. Justice), Dr. D. T. MacDougal, Prof. C. Massalongo, 
Mr. W. R. Maxon ‘(numerous Contributions from the United 
States National Herbarium, and other papers), Prof. T. G. B. 
Osborn, Dr. E. P. Phillips, Mr. T. A. Sprague (Russia, by 
D. Mackenzie Wallace, 2 vols., and a MS. Flora of Timbuctu, 
compiled from the works ef Dr. Aug. Chevalier), Dr. R. Stockman, 
Mr. Gunnar Tackholm, Dr. dC. Th, nny and Mr. C. T. White. 
Additions to the Herbarium during 1920.—During the year 
about 19,900 specimens were received as donations or exchanges 
and 12, 499 purchased, while 2,828 were —— on loan. The 
principal collections are enumerated belo 
Evrore.—Presented : Britain : Cornish Plante, by Mr. Edgar 
Thurston; British Rubi, by Mr. E. Langley; various British 
and continental plants, by Mr. C. E. Salmon; Pyrenees and 
Corsica, by Dr. Michel Gandoger; Austria, Kryptogamae exsic- 
catae, centuries 22-24, by Dr. A. Zahlbruckner; Macedonia, by 
Mr. Lyon V. Turner. 
Purchased: Dr. H. Dahlstedt, Taraxaca Scandinavica Exsic- 
cata, fascicle vi. 1; H. Sydow, Mycotheca Germanica, fascicles 
25-27; Adr. Fiori and A. Béguinot, Flora Italica Exsiccata, 
centuries 23-24, and Xylotomotheca Italica, nos. 131-150; 
Dr. M. Gandoger, Crete and Syra. A. Leithe-Jasper, Tyrolese 
Cryptogamia. 
On1ent.—Presented : Mesopotamia, collected by members of © 
the a Department cf Agriculture, per Lt. Oa, Bode D. 
Graham 
