BOTANY. 825 



The dichotomous group of Panicum in the Eastern United States, W. W. Ashe 

 (Jour. Elisha Mitchell Sci. Soc, 15 (1898), No. 1, pp. 22-62).— The author commeuts on 

 the confusion in this group, rearranges the species, and describes about 20 new species. 



Studies in Cyperaceae, T. Holm (Amer. Jour. Sci., 4. ser., 7 (1S90), No. 3, pp. 171-183, 

 figs. J).— Notes are given on Llpocarpha maculatu, L. argentea, L. sphacelata, and L. 

 microcephala. 



A memoir on the Chlamydomonadineae, I'. A. Daxgeard (Botaniste, 6. ser., 1899, 

 Xos. 2-6, pp. 65-299). 



Contributions to the history of the india-rubber plant, E. Goeze ( Wiener Illus. 

 Gart. Ztg., 23 (1899), No. 1, pp. 15-24). 



The occurrence of copper in the plant world, G. B. Frankforter (Chem. News, 

 79 (1899), No. 2044, pp. 44, 45). 



Concerning the constituents of the seed of Pinus cembra, E. Schulze and N. 

 Rongger (Landw. Vers. Stat., 51 (1898), No. 2-3, pp. 189-204). 



The constituents of the seed of Picea excelsa and its proteids, N. Rongger 

 (Landw. Vers. Stat., 51 (IS OS), No. 2-3, pp. 89-116). 



The physiological action of certain plasmoly zing agents, R. H. True (Bot. Gaz., 

 26 (1S9S), No. 2, pp. 407-416).— The author reports upon the physiological action on 

 Spirogyra of various concentrations of cane sugar, glycerin, sodium chlorid, and 

 potassium nitrate. 



The effect of the electric current on plants, B. Klein (Ber. Deut. Bot. Gesell., 16 

 (1898), No. 10, pp. 335-346). — The stimulating effect of electric currents on a number 

 of leaves and seedlings is shown. 



On the effects of stimulative and anesthetic gases on transpiration, H. Dixon 

 (Proc. Boy. Irish Acad., 3. ser., 4 (1898), No. 5, pp. 618-626, fig. 1). 



The primary synthesis of proteids in plants, W. M. Kozlowski (Bid. Torrey 

 Bot. Club, 26 (1899), No. 2, pp. 35-57). — The author reviews the various hypotheses 

 relative to the formation of proteids in plants, and states his own theory of their 

 formation from lower nitrogenous combinations. 



Formation of albumen in the generation of onion bulbs, \V. Zaleski (Ber. Deut. 

 Bot. Gesell., 16 (1898), pp. 147-151; abs. in Jour. Bog. Micros. Soc. [London'], 1899, No. 1, 

 p. 56). — The author has determined a considerable increase in the proteid substance 

 of bulbs of Allium cepa germinated in the dark, the percentage rising from 32 to as 

 much as 52.5. The bulbs are said to contain a much smaller proportion of reserve 

 proteids than the seeds. The amount of asparagin remains about constant, and tbe 

 formation of proteids in the dark can not be said to be due exclusively to asparagin 

 and glutenin. 



Investigations on the sex organs and fruiting of Cycas revoluta, S. Ikeno 

 ( Jour. Col. Sci. Imp. Univ. Tokyo, 12 (1898), No. 3, pp. 151-214, pis. 8). 



Studies on the fecundation and embryology of Ginkgo biloba, S. Hirase 

 ( Jour. Col. Sci. Imp. Univ. Tokyo, 12 (1S98), No. 2, pp. 103-149, pis. 3). 



Dimorphism in Australian cruciferous plants, R. Tate (Tram. Boy. Soc. South 

 Australia, 22 (1898), No. 2, pp. 122-124). 



The root tubercles of alders and the Eleagnacese, L. Hiltxer (Forstl Naturw. 

 Ztschr., 7 (1898), No. 12, pp. 415-423).— Notes are given on tbe tubercles on the roots 

 of Alnus, Sheperdia, Hippoplnea, etc., of the organism causing the swellings, their 

 entrance through the root hairs, aud their ability to assimilate atmospheric nitrogen. 



Inoculation for leguminous plants, Saufeld (Deut. Landw. Presse, 26(1899), No. 

 13, pp. 120-121).— A rather popular article on the object aud results of soil inocula- 

 tion for nitrogen assimilation. 



Experiments with Alinit: An answer, Gerlach (Finding's Landw. Ztg., 4S (1899), 

 No. 2, pp. 69, 70).— This is a reply to an article on experiments with Alinit by Stok 

 lasa, which immediately precedes it. The author cautions the farmers against the 

 use of Alinit uutil it has been carefully and scientifically tested. 



The use of Alinit in the culture of cereals, L. Malpeaux (Ann. Agron., 24 (1S9S), 

 No. 10, pp. 482-492; abs. in Chem. Ztg., 22 (1898), No. 36, liepcrt., p. 313).— Upon poor 



