FORESTRY. 447 



synonyms, range and distribution, soil and climatic adaptability, seed collection, 

 methods of propagation, planting, and subsequent care with special reference 

 to its culture in Chile, and notes on the timber and its uses. 



The red gum (Eucalyptus resinifera), F. Albert (An. Agron. [Santiago 

 de Chile], 2 (1901), \<>. 1-2, pi>. J00-J31, figs. 11). — A monograph on this 

 species of eucalyptus similar to that noted above for E. viminalis. 



The Australian blackwood (Acacia melanoxylon), F. Albert (El Aromo de 

 Australia o Acacia melanoxylon. Santiago de Chile: Sec. Aguas i Bosques, 

 Min. Indus., 190S, pp. Jfl, figs. IS; An. Agron. [Santiago de Chile], 2 (1907), No. 

 Ji, pp. 651-689, figs. 18). — A monograph on this species treated in similar manner 

 to those above noted. 



Shelter planting, with special reference to the Acacia and Eucalyptus 

 families and their raising, ,J. E. Barrett (Nen^ Zeal. Dcpt. Agr., Div. Live 

 Stock and Agr. Bui. 1, pp. 10, dgms. 2). — Popular directions are given for the 

 cultivation of acacia and eucalyptus trees for use as shelter belts. The trees 

 specially recommended for this purpose, owing to the value of the timber and 

 other i)roducts in addition to their usefulness as shelter, are the black wattle 

 (Acacia decurrens), blackwood (A. melanoxylon) , Eucalyptus amygdalina, and 

 E. rostrata. 



Type and variability in the annual wood increment of Acer rubrum, A. 

 Dachnowski (Ohio Xat., 8 (1908), A'o. 7, pp. 3'iS-3Ji9, fig. l).—To obtain direc-t 

 evidence relative to the influence of habitat on the annual accretion of wood, 

 measurements were taken of the width of the annual rings of several red maple 

 trees recently felled, both in a bog and on the shores near by. These data are 

 presented in tabular form, and the author briefly discusses the value of a 

 biometric study in differentiating habitats. The conclusion is reached that a 

 biometric record of secondary growth in trees furnishes a very valuable cri- 

 terion for the comparison of the conditions of different plant habitats. The 

 text is accompanied with a brief bibliography of works in which biometric 

 methods are discussed. 



A preliminary note on the development of the sal in volume and in 

 money value, A. M. F. Caccia (Indian Forest Rec., 1 (1908), No. 2, pp. 238, pi. 

 1, dgms. Jf, map 1). — The author has aimed to bring together the statistical data 

 at present available regarding the development of sal trees and sal woods in 

 volume and in money value. 



In part 1 the sal-bearing regions of India are briefly outlined and a table is 

 given showing the distribution of the government sal forest reserves within 

 those regions. Part 2 deals with the development of the stem of single sal 

 trees, including height, girth, and volume increment, stem shape and stem form 

 factors, volume tables, and volume increment percentage. An extensive list is 

 given of all existing sample plats of sal maintained by the forest department 

 in the Rer^al Presidency for the purpose of determining the rate of girth in- 

 crement, the results of measurements thus far recorded being given. Succeed- 

 ing parts of the work deal with the development of the different parts of a sal 

 tree, the stem development of whole stands, and the development of the money 

 value of single trees and whole stands. In Appendix A the more important 

 sylvicnltural problems i-elating to the sal are outlined, and a further appendix 

 contains data on the growth of some of the companion trees of the sal. A list 

 is given of the literature consulted, together with a map showing the distri- 

 bution of sal reserved forests in 1007 in the Bengal Pi'esidency. 



Native and planted timber of Iowa, H. P. Baker ( TL S. Dcpt. Agr., Forest 

 Sere. Circ. 15'i, pp. 5-2.'i, fig. I). — Investigations were made during 1905 by the 

 Forest Service to determine the extent, character, and value of the native farm 

 wood lots and planted groves in Iowa, with a view of aiding in the movement 



