44 EXPERIMENT STATION BECOED. [Vol.37 



Investig-ations on the process of tea fermentation as conducted in the 

 Malabar Laboratory, K. A. R. Bosscha and A. Brzesowsky (Dept. Lnmlb., 

 Nijv. en Handel [Dutch East hidies], Meded. Proefstat. Thee, No. 47 {1916), 

 pp. 40, pi. 1, flffs. 10). — An account is given of investigations relative to the 

 various microorganisms occurring on tea leaves and the fermentation of tea 

 vpith and without the presence of these microorganisms. A bibliography of 

 cited literature is given. 



The authors conclude in substance that although the process of tea fermenta- 

 tion progresses hand in han<l with the development of raicro-organisnis on the 

 tea leaves it is independent of the pre.sence of these micro-organisms. Fer- 

 mentation does not progress successfully above a certain critical temperature. 

 The present experiments indicate this temperature to be from 43 to 43.5° C. 

 (109.4 to 110.3° F.). Likewise, fermentation will not take place in an atmos- 

 phere deprived of oxygen. The experiments do not show, however, whether 

 fermentation is brought about by the action of the ferment present in the tea 

 or by oxidation of the constituents of the tea through the oxygen of the 

 atmosphere. 



Beport on varieties of pecans for 1914, 1915, and 1916 at the Georgia 

 Experiment Station. H. P. Stuckey {Georgia Sta. Cite. 76 {1917), pp. S). — In 

 continuation of previous records on the varieties of pecans grown at the station 

 orchard (E. S. R., 34, p. 151), tliis circular records the behavior of the trees 

 during the years 1914, 1915, and 1916. 



Breeding for atropin, L. W. Akny {Jour. Heredity, 8 {1917), No. 4- PP- 164- 

 167, fig. 1). — Preliminary observations on Fi belladonna seedlings suggest that 

 size of plant at the harvest period in connection with color of stem may be an 

 Index to the relative atropin content of the plant. In the present work high- 

 yielding plants were small, with light stems, and low-yielding plants were 

 large and vigorous, with dark stems. Observations are to be continued on 

 selected F, plants. 



Planting the home grounds, J. H. McFakland {Ilarrisburg, Venn.: The 

 Countryside Press, 1915, pp. 70. figs. 29). — A popular treatise on planning and 

 planting the home grounds, Including lists of plants recommended for various 

 purposes. 



Decorative shrubs and trees, E. L. Wolf {Dekorativnue KuJitamiki i 

 Derev'QL dlHi Sadov i Parkov. Pctrograd: A. F. Devrien, 1915. pp. XI-\-462, pi. 

 1, figs. 203). — A treatise on the selection, planting, and care of ornamental trees 

 and shrubs, including lists of varieties recommended for different purposes. 



How to grow chrysanthemums, J. Clayton {Loudon: The Coble Printing 

 and Publi/ihing Co., Ltd. [1917], pp. 4+97. pis. 4).—\ practical guide for be- 

 ginners, giving details for growing chrysanthemums in the greenhouse and In 

 the open. 



FORESTRY. 



The correlation of American forest research, E. H. Clapp {.Jour. Forestry, 

 15 {1917), No. 2, pp. til'i-nS). — In this paper the autlior gives a general sum- 

 mary of re.search Investigations of the Forest Service of the U. S. Department 

 of Agriculture and calls attention to research work l)eing conducted by certain 

 States and private foresters and to the importance of securing correlation of 

 the forest research work carried on by all agencies in the Unlteil States. 



Sixteenth annual report of the State Board of Forestry. 1916, E. A. Glad- 

 den {Ann. Rpt. Ind. Bd. Forestry, 16 (1916). pp. 217+y, figs. 107).— In addi- 

 tion to a report on activities on the State forest reservation, descriptive lists 

 are given of native trees found on the State forest reserve and native trees of 



