FORESTRY. 255 



The figures in the table were obtained with \.— am leaf. "Given normal wither- 

 ing conditions, tin- leaf should be so spread as to be physically ready for rolling in 

 approximately the times indicated in the first column above. It', on the othei 

 hand, the atmosphere is so saturated thai withering does nol take its usual course, 

 the chemical condition of the leaf will begin to deteriorate alter approximately the 

 times given in the second column of the above table. Whether the manufacturer 

 will find it of advantage to leave his leaf longer than this before manufacture, in tl e 

 hope of getting leaf in better condition for rolling, is a matter for him to settle, but 

 if he does so leave it it is at the cost of losing some of the quality of the tea produced." 



Seme attention has been paid to the changes other than that of the enzym in tea 

 during withering, and it has been shown that the total soluble constituents of the tea 

 leaf are considerably increased by withering. Attention is called to the desirability 

 of Bterilizing with boiling water the vessels used in handling the leaf, as well as the 

 racks and rollers in the factory, it' the best quality of tea is to be produced. 



Earlier experiments seemed to indicate that the enzym of tea was nol destroyed 

 during fermentation by the presence of salicylic acid, bul further work indicates that 

 "its use always brings about a thinner liquoring tea than otherwise, and this has 

 now been explained by the discovery that the ferment was slowly destroyed by its 

 action. Twenty hour-, as a matter of fact, after the addition of salicylic acid to a 

 strong solution of the tea ferment, all the latter had disappeared." 



Growing- chrysanthemums for a retail trade, F. Canning (Massachusetts Sta. 

 lijit. 1904, />/>. 168-172). — Directions are given, based on the work in the college 

 greenhouse, for growing chrysanthemums for a retail trade. 



The culture of chrysanthemums is discussed and the varieties most suited for this 

 purpose are mentioned and described. Methods of using the score card in connection 

 with the judging of chrysanthemums are included. As to the merits of solid beds or 

 benches the author's experience is in favor of solid beds. The soil used forbenches 

 and pot plants is a good turfy loam composted the previous fall or in the early spring 

 of the same year. To 3 parts of this soil is added 1 part of well-rotted manure and 

 ahont a quart of hone meal to each barrowful of compost. 



FORESTRY. 



Trees, a handbook of forest botany, II. Marshall Wajud (Cambridge: Univ. 

 Press; New Vork: Thi Macrnillan Co., 1904, vol. /./'/'■ XIV 971, figs. 187; ><,!. .',/>/>. 

 A 348, figs. 125; 1905, ml. 3, />/>. XII 402, figs. 143). — This series of volume- is 

 designed to furnish students of forest botany with a guide to the study of trees and 

 shruhs. and will he found useful to the amateur who wishes to know something of 

 the trees and shruhs about him, and to the technical student as well. The language 



is not unnecessarily technical, and the 1 ks will serve as an introduction to the more 



modern methods of systematic botany and morphology. The author eeeks to 

 encourage first-hand acquaintance with trees in their natural surroundings, which 

 requires a knowledge not only of the characters usually employed by Bystematiste' 

 but also <.f buds, twigs, leaves, seeds, seedling, etc.. which are commonly disre- 

 garded in all hut special treatises on the subjects. 



The volumes already issued hear the titles Buds, Leaves, ami Flowers and Intlo- 



resences, and the succeeding volumes will treat of Fruits and Seed-. Seedlings, and 

 Habit and Conformation of Trees. At the end of each volume key- will be given 

 for use in the field, each series being based upon the characters treated in the volume- 

 Forest preservation and national prosperity | /'. S. I>-j>t. Agr. } Forest Serv. 

 ' ire. 35, i>i>. 31 i. — This circular contains portions of addresses delivered at the Amer- 

 ican Forest Congress, held in Washington, .January L'-ti, L905, by President Roose- 

 velt, Ambassador Jusserand, Secretary of Agriculture Wilson, and others. 



