43 
Tison, Adrien. Production anormale de racines adventives sur les 
tiges dun Caly aia: Jloridus, L. (Bull. Soc. Linn. Norm. 6, iv.) 
(Caen, 1911.) 8vo 
Author. 
Tison, A. Sur la persistance de la nervation dichotomique chez les 
Coniferes. (Bull. Soc. Linn. Norm. 6, iv.) (Caen, 1912.) 8vo. 
Author. 
Tobler, Friedrich. Die Gattung Hedera. Studien iiber gern und 
Leben des Efeus, seine Arten und Geschichte. J ena, 1912. 8vo 
Author. 
Trelease, William. Species in oon (Proc. Amer. Phil. Soc, 
xlix.) [Philadelphia] (1910.) 8vo 
Author. 
Trelease, W. The smallest of the Bae es Plants. (Popul. Sc. 
Monthly, 1910.) [New York] (1910.) 8vo 
Author. 
Trelease, W. The classification of the Black Oaks. (Proc. Amer. 
Phil. Soe. li.) [Philadelphia] (1912.) 8vo 
Author. 
Trow, Albert Howard. The Flora of Glamorgan. Vol.i. (Trans. 
Cardiff Nat. Soc. xxxix-xliii. Supplements.) Cardiff, 1911 
(1906-10). 8vo. 
Ule, Ernst. See Gilg, E. [1912 ?] 
Usteri, Alfred. Flora der Umgebung der Stadt Sao Paulo in 
Brasilien. Jena, 1911. 8vo. 
Valeton, Theodoric. See Lorentz, H. A. Nova Guinea. 1911. 
Venth, Ernst Max. Uber emulsinartige Enzyme. Diss. Strass- 
burg, 1912. 8vo. 
E. Schir. 
Volkens, Georg. Laubfall und Lauberneuerung in den Tropen. 
Berlin, 1912. 8vo. 
Warming, Johannes Eugen Bilow. See Rosenvinge, L. K., & 
J.B. B. W. 1912. 
Warren, J.C. The great Tree on BostonCommon. Boston, Mass., 
1855. 
: C. S. Sargent. 
Weinthal, Leo. See Murray, J. 1912. 
Wercklé, Carlos. La subregién fitogeografica costarricense. (Soc. 
ye oer Costa Rica.) San José, 1909. _ 
George Stephen. Some new African species of Volvox. 
ae helen Beak. Microsc. Cl. 2, xi.) (London, 1910.) 8vo. i 
West, G.S. See Annals of the South African Museum, vol. ix. 
West, William, & George Stephen West. A monograph of the 
Baus’ Desmidiaceae. Vols. ii-iv. (Ray Soc.) London, 1904-11. 8vo 
