BOTANY. 291 



Rontgen rays applied to the study of flower buds and seed vessels, G. J. 

 BuKCii {Gard. Chvon., sir. 3, 20 {ISr/d), Xo. ''13, p. 4:>l,Ji(/s. .'). 



Experiments on the influence of the variation of climate on vegetation, J. 

 Eailix {Attn. ^ci. Aijtoti., .so-. J, J. (1S90), Xo. J, pp. Sll-S.V). 



Distribution of plants on the south side of the Alps, J. Ball ( Ti-attx. JAnn. Soc. 

 Bol., set: ;.', o {ISOO), Xo. 4, pp. 119-JJ7). 



Contributions to the arboreal flora of Java, III, S. H. Kookdeks and T. Vale- 

 ton {Mcdcl. 'sLatids Platttetitu'ut, Xo. 1(1, pp. 3J0). — Tec-liiiical and economic notes, 

 together with descriptions of new species of trees of Java are given. 



Some New South "Wales plants w^orth cultivating for shade, ornament, etc., 

 J. n. Maiuex {Dept. Ayr. N. S. Wales, 1S96, June, pp. 39). — Economic notes are given 

 of numerons species of plants in A'ew South Wales. 



Contributions to Queensland flora, F. M, Bailey (QiicetisJand Dcpt. Afjr. Hot. 

 Bill. 13, pp. 34, pis. 4). — Descriptive notes are given of some additions to the llora of 

 Qneeuslaud. 



The grasses of Uruguay (continued), J. A ve( ha valeta (.-!/(«/. mns. nacional Mon- 

 ii'video, 1S90, Xo. 5, pp. 373-432, pis. 14). — Descriptions and ilhistrations are given of 

 some of the grasses of the region designated. 



Geographical distribution of medicinal plants, G. Plaxchon {Jotir. J'harm. et 

 Cliiitt., sir. 6, 4 (lS96),Xo. 9, pp. 389-397). — This paper gives the distribution of the 

 principal medicinal plants of the United States. 



The myxomycetes of the Miami Valley, Ohio, A. P. Morgax (Jour. Cincinnati 

 Soc. Xat. Hist., 10 {1S9<;), Xo. 1, pp. 44, pis. 3). 



Flora of southwestern Kansas, A. S. Hitchcock {V. S. Dept. Agr., Division of 

 Botantj, Contrihiiiions frotn U. S. Xaiional Herbarium, vol. 3, Xo. 9, pp. 537-557). — A report 

 on a collection of plants made by C. H. Thompson in 1893. 



Flora of the Black Hills of South Dakota, P. A. Rydberg ( U. S. Dept. Agr., 

 Division of Botantj, Contributions from U. S. Xational Herbarium, vol. 3, Xo. 8, pp. 

 463-540, pis. 4). — A critical rejiort is made on the flora of the Black Hills region as 

 observed by the author on a collecting trip made through that region in 1892. The 

 distribution of the plants as aflected by the geological, topographical, and meteoro- 

 logical conditions is discussed and a catalogue given of the 2)lauts collected. Sev- 

 eral new species and varieties are described. 



First report on the flora of Wyoming, A. Nelson {JVyoining Sfa. Bnl. 2S,pp. 

 47-213, figs. 3, map 1). — A jireliminary report is given of the flora of Wyoming, based 

 upon extensive collections made during the seasons of 1894 and 1895, represented by 

 about 1,600 numbers. A descriptive report is given of the itinerary of the expedi- 

 tious, together with critical notes on the different local floras, and a list of species 

 with critical notes. Sixteen new species and varieties are described. 



Plants from the Big Horn Mountains of "Wyoming, J. N. Rose ( [". S. Dept. 

 Agr., Division of Botany, Contributions from U. S. Xational Herbariutn, vol. 3, Xo. 9, pp. 

 567-574). — A report is given of a collection of plants made in 1893. 



An illustrated flora of the Northern "United States and Canada, etc., I, N. L. 

 Brittox and A. Browx {Xetv York: Chas. Seribner's Sons, 1896, pp. XII, G12, figs. 

 1,425.) — An illustrated manual of northeastern United States arranged in the main 

 according to the system of Eugier and Prautl and the uomenchtture of the Roches- 

 ter rules. 



"Vegetable physiology w^ith special reference to agricultural plants, A. B. 

 Frank (Lehrbuch d<r Pfianzenphysioloyie mit besonderer Beriicksichtigutig der latid- 

 wirthschaftlichen Culturpflanzen. Berlin: P. Parey, 1896, 2d ed., pp. VII, 205, figs. 57). 



A manual of botany, Vol. II, J. R. Greex (London: J. and A. Churchill, 1896; 

 revietvi'd in Xatnrc, 54 {1896), Xo. 1407, pp. 570, 571). — This volume is devoted to 

 classification and iihysiology. 



