1080 EXPEKIMENT STATION EECORD. 



planting and describes a number of species which either liave been tried or are 

 beheved to be adapted to Algerian conditions. 



The forester and tlie lumberman, G. Pinchot {Forestry and Irrlg., 9 {1903), 

 No. 4, pp- 176-178). — An address, in which the author points out the necessity for 

 cooperation between the lumber industry anil the scientific forester, in order to 

 secure the greatest measured benefits to both. A review is given of the methods of 

 forestry and some of the results already obtained in this country. Attention is also 

 called to the forestry operations conducted under governmental authority in the 

 Philippines. 



A profitable cutting- of insect-killed timber, A. Gary {ForcMry and Irrig., 

 9 {1903), Nd. o, ji]t. 149, l-')0) . — An account is given of a method of lumbering by 

 which tind)er destroyed by bark l>eetles was protltably hunl)ered and at the same 

 time the ravages of the bark 1)eetles greatly reduced. The presence of the l)ark 

 beetles in the spruce forests has been known for about 15 years, their ravages con- 

 stantly increasing. In some tracts fully half the standing timber has been destroyed. 

 The author arranged for the cutting of a considerable portion of dead timber, which 

 belonged to the Berlin Mills Gorapany, in such a way that the expense was not 

 so great that contractors would be unwilling to undertake the lumbering. The 

 ravages of the bark beetle appear to spread from centers, so that nearly all the trees 

 in definite regions would be destroyed. By cutting these, together with enough 

 green timber to justify the luinl)ering, it was found that contractors would undertake 

 the necessary operations. 



Preservation of soil fertility in plantations, A. G. Forbes {Trans. Highland 

 and Agr. Soc. Scotland, 5. ser., 15 {1903), pp. 69-94).— ^n argument in favor of more 

 attention to the preservation of fertility in the soil of forest plantations. 



Shade tree suggestions, A. Nelson ( Wyoming Sta. Bui. 57, pp. 14, pis. 5). — This 

 l)ulletin is i)rc']iarcd to show what may be done in improving the conditions of 

 Wyoming in the way of street, lawn, and other plantings, the principal object being 

 to give impetus to the movement for the ornamentation of homes, municipal build- 

 ings, ])arks, etc. 



Creosoting timber, S. W. Labrot {Tvadrsman, 4^ {1903), Ko. 6, pp. 77, 78). — A 

 description is given of the processes of treating timber by the zinc-creosote method. 

 This consists in two operations — the sterilizing and drying of the timber and the 

 forcing into the wood of the antiseptic chemical. In sterilizing the timber great care 

 must be taken to avoid overheating, as excessively higli temperatures have a very 

 damaging effect upon the strength of the timljer. This is particularly true of those 

 which contain r(^sinous substances. These resins are evaporated at about 305° F. 

 and their removal greatly weakens the structure of the wood. After sterilization the 

 chemical is forced into the wood under pressure, and in the method descrilied zinc 

 chlorid is mentioned as the cheapest and most common substance used iji this 

 country. Tind)er treated in this manner is said to have its durability increased by 

 12 to IB years in the case of white pine railroad ties, or from 18 to 30 years in railroad 

 structural timbers. 



SEEDS WEEDS. 



Timothy, alsike, and red clover seeds, G. H. Glark {Canada Drpl. -If/r., 

 Comr\s Branch, Seed, Division Bid. 8, n. ser., pp. 30). — The purjiose of this bulletin is 

 to call attention to the trade conditions in timothy, alsike, and red clover seeds, and 

 to give the results of analyses of more than 500 samples of seeds collected from vari- 

 ous parts of Canada. A sununary is given of the methods of seed testing and seed 

 control that have been adopted in other countries, and other information which it is 

 believed would be helpful to seed growers, merchants, and consumers. Inquiries 

 were sent to a large number of correspondents from whom 513 samples were received 



