844 EXPERIMENT STATION RECORD. 



are ireatetl with refiTence to botli their producing oouutries and tbeir botanical 

 classiticatioii. 



Eucalyptus culture in Hawaii, L. Margolin (Bd. Comrs. Agr. and Forestry 

 Hawaii, Div. ForcNtrij Bui. J, 1911, pp. SO, jjIs. 12). — This embraces the results 

 of a^study of eucalyptus plantations in Hawaii, conducted cooperatively by 

 the Forest Service of this Ucpartnieut and the Territorial Board of Agriculture 

 and Forestry. The object of the report is to put before landowners in Hawaii 

 comprehensive suggestions and definite recommendations in regard to growing 

 and managing eucalyptus forests. 



The important phases discussed include physical requirements, habit of 

 growth, enemies, uses of eucalypts, establishment, care, and management of 

 eucalypts, growth, yield, and financial returns, and forest management for 

 sugar plantations. 



An appendix contains notes on the character and uses of various species of 

 eucalypts in Australia, classification of species by size, lists of eucalypts 

 planted in Hawaii, a bibliography on eucalypts, and field notes on the trees 

 found planted in Hawaii. 



A manual for eucalyptus planters, E. Navaero de Andrade {Manual do 

 Plantador de Eucalyptos. Sao Paulo, 1911, pp. VI+3Ji3, figs. 183). — Part 1 of 

 this manual, which has special reference to the culture of eucalypts in Brazil, 

 treats of the climatic and soil requirements of eucalypts, methods of reproduc- 

 tion, planting operations, culture and management of eucalyptus stands, protec- 

 tion from insects and other enemies, cost, yields, returns, etc., timber and other 

 products, and methods of regeneration. Part 2 takes up the A'arious species of 

 eucalypts relative to their botany, distribution, products, and behavior under 

 cultivation. 



.Guayule (Partlieniuni argentatum) : A rubber plant of the Chihuahuan 

 Desert, F. E. Lloyd {Carnegie Inst. Washington Bub. 139, 1911, pp. VIII+213, 

 pis. Jf6, figs. 20). — This work embraces the results of investigations conducted 

 with guayule by the author for a number of years with the view of developing 

 a successful method for growing this desert rubber plant. Introductory re- 

 marks deal with the discovery of guayule, the development of the rubber 

 industry, and cultural attempts. In the succeeding chapters guayule is dis- 

 cussed in detail relative to its environment, morphology, reproduction, anatomy 

 and histology, the resin canals, the origin and occurrence of rubber, vegetative 

 reproduction, and conclusions relative to the methods of growing and pos- 

 sibilities of guayule under forestal or under cultural treatments. 



A bibliography is appended. 



Treatment of shingles with creosote to increase their durability, J. A. 

 Ferguson {Pennsylvania 8ia. Rpt. 1910, pp. 308-310, j)l. 1). — An account is 

 given of experiments conducted during the past year to determine the practi- 

 cability of utilizing for shingles inferior and perishable woods treated with 

 creosote, and to determine the amount of creosote absorbed by a bundle of 

 shingles. 



The shingles chosen for the experiment were of loblolly pine, Pennsylvania 

 pitch pine, and chestnut. They were treated by the open-tank process. The 

 chestnut shingles absorbed 17.1 lbs. of creosote per bundle at a cost of 45.5 cts. 

 Pennsylvania pitch pine absorbed 15.5 lbs. of creosote per bundle at a cost of 

 41.7 cts.. and loblolly pine shingles 11.3 lbs. of creosote per bundle at a cost of 

 32.5 cts. These shingles, together with western cedar, redwood, and untreated 

 chestnut shingles, are to be tested for durability over a term of years. 



