56 EXPERIMENT STATION RECORD. 



In the present paper attempts are made to analyze the data published previously, 

 and comparisons are drawn between the growth of different species of trees and the 

 rainfall and temperature. In general it appears that a season of heavy rainfall is 

 accompanied by good growth, and where the rainfall is slight relatively little tree 

 growth is made. From the tables given it appears that rainfall, at least under the 

 conditions of the author's observations, is the most important, temperature and sun- 

 shine being accessories. 



The effects of a hailstorm on growing timber, II. C. Sampson (Trans, and 

 Proc. Bot. Soc. Edinburgh, 22 (1902), pt. 2, pp. 254-257). — An account is given of the 

 effect of a heavy hailstorm on various timber crops. The storm occurred in June 

 when the trees were in full leaf and through the loss of leaves, destruction of twigs, 

 etc., there must have been a reduction of the year's growth. Wounds caused by 

 the hailstones were observed on the stems of trees where the young bark was still 

 smooth and no damage was observed on the bark of branches more than 2 in. in 

 diameter. 



The coniferous trees seemed to have suffered the least, and wounds formed on the 

 stems were soon covered by an exudation of resin. Among the coniferous trees larch 

 appeared to have suffered most. Scotch pine was damaged to a considerable extent, 

 while spruce seemed the least affected of any. The proportion of the amount of 

 injury to broad-leaved trees was in the order of willows and poplars, ash, sycamore, 

 oak, alder, beech, and birch. 



The damage done in the injury to the deciduous trees was reported in the follow- 

 ing order, those first mentioned healing quickest: Mountain ash, beech, alder, ash, 

 birch, sycamore, oak, poplars, and willows. 



On the influence of various fertilizers on pine and spruce plantings, T. 

 Canxelix and L. Stexback (Landtbr. Styr. Meddeh, 190S, No. 44, pp. 159-161). 



Forestry, F. W. Raxe (New Hampshire Sta. Bid. 106, pp. 27-43, Jigs. 9).— This is 

 a popular bulletin giving an account of forests and forest management, and how to 

 convert waste lands into forests adapted to different uses. The suggestions are 

 designed for the reforesting of worn-out fields, natural pastures, burned-over wood 

 lots, sprout or brush Tands, sandy barrens, and low, wet lands. 



Advancement in American forestry, E. E. Faville (Proc. Ioiva Park and For- 

 estry Assoc, 3 (1903), pp. 37-42). — A brief review is given of the forestry situation as 

 shown by census reports, and attention called to some of the conditions as shown by 

 the forests of Michigan, Wisconsin, and Minnesota. The more recent legislation 

 regarding forest reserves, and the work of the Bureau of Forestry of this Department 

 are outlined. 



The future of Federal forest reservations, E. A. Bowers (Forestry and Irrig., 

 10 (1904), No. 3, pp. 131-135). — An outline is given indicating future lines of devel- 

 opment of the forest reservations, among the most important of which the author 

 believes will be their educational value. These reservations, scattered through a 

 wide range of latitude and longitude and dealing with widely varying condition^, 

 must furnish accumulating experience and knowledge of forestry that will be put to 

 future use. 



A forest policy for Massachusetts, B. E. Ferxow (Forestry Quart., 2 (1904), 

 No. 2, pp. 49-74). — In a lecture delivered before the State Board of Agriculture of 

 Massachusetts a review was given of the forestry condition of Massachusetts and an 

 attempt was made to outline a forest policy for the improvement of the conditions 

 existing in that State. 



Among the points advocated, as given in the summary of the lecture, were the 

 improvement of the forest-fire laws, the appointment of a State forester, encourage- 

 ment by financial aid of associations and educational agencies concerned in forestry, 

 the acquisition by the State for forest reserves of stump, brush, and waste lands, the 

 encouragement of towns to acquire town forests, and the encouragement of private 



