74 FORESTRY [Bot. Absts. 



increase in size, the greater is the damage. Detailed calculations are given showing that, in 

 the case of two stands of fir or spruce, with different rates of growth, and with diameters 

 ranging from 6 to 16 inches, the damage may vary from 200 per cent of the present sale value 

 in case of the 6-inch trees to 5 per cent or less in the case of the 14-inch trees, 4 per cent being 

 assumed as the rate of interest. No damage is done in the case of the 16-inch trees, which 

 are ready for exploitation. So many variable factors, often impossible of exact determina- 

 tion, are involved, that any very accurate estimate of damage is practically out of the ques- 

 tion. — S. T. Dana. 



504. Anonymous. Report of the Division of Forestry for the biennial period ended Decem- 

 ber 31, 1918. 58 p. Territory of Hawaii, Bd. of Agric. and Forest., 1919. — This report covers 

 the activities of the Hawaiian Division of Forestry in 1917-18 and presents chiefly the prog- 

 ress made in placing the forest reserve system under administration and in the work of 

 reforestation. On December 31, 1918 there were 47 forest reserves in the islands, with an 

 area of 814,926 acres, of which 68 per cent is Government land. The protection of these areas 

 is vital, as they directly govern the water supplies of lower lands, and fencing against stock 

 and elimination of wild stock from fenced areas are the first necessities, since the forests 

 deteriorate into grassland if not protected. Fires have been guarded against and only five 

 occurred in the biennium. — Forest extension has been pushed; both by the experimental 

 introduction of new species and by the larger-scale planting of species of known worth, largely 

 koa. Jeffrey pine, Coulter pine, Jack pine, Scotch pine, Norway spruce, incense cedar and 

 white pine have developed well at an elevation of 6,700 feet. A total of 1,632,598 trees of all 

 species have been planted by private land owners and 776,045 by the Territory of Hawaii, 

 in 1917-18.— F. S. Baker. 



505. Anonymous. Diseases in plantations of exotic trees. New Zealand Jour. Agric. 

 18: 63. 1919. 



506. Anonymous. Machine to locate forest fires. Canadian Forestry Jour. 14: 149. 

 April, 1919. — A description is given of the Osborne fire finder, to be used at look-out stations, 

 together with the manner in which the machine is to be used. — E. N. Munns. 



507. Anonymous. Nos forets retrouvees: statistique sommaire des bois de l'fitat en 

 Alsace et en Lorraine. (Statistical summary of the state forests in Alsace and Lorraine.) Bull. 

 Trimest. Soc. Forest. Franche-Comte et Belfort 13: 5-7. 1919. — The state forests in Alsace 

 and Lorraine cover 374,000 acres in five different departments and are composed largely of 

 high forest. — S. T. Dana. 



508. Anonymous. Le Beau en matidre forestiere. [Beauty in forest matters.] Bull. 

 Trimest. Soc. Forest. Franche-Comte - et Belfort 13: 18-20. 1919. — Beauty as well as utility 

 should be considered in restoring the forests devastated by the war. Simple coppice, coppice 

 under standards, and even-aged high forest are all inferior in beauty to a selection forest, 

 which resembles a cleared-up virgin forest. As Broilliard has said, "Are we not forced to the 

 conclusion that the best treatment of forests is that which renders them the most beautiful?" — 

 8. T. Dana. 



509. Anonymous. [E. A.] Buskfuru. Pinus montana uncinata, P. pumila and P. m. 

 gallica. Tidsskr. Skogbruk 26: 375-376. PI. 1. 1918.— Success has attended the planting 

 in Norway of the above-named species, the seed of which has been received from France at 

 frequent intervals during the last 50 years. These pines produce wood for fuel on expceed 

 sites and poor soil where the native trees do not grow. — J. A. Larsen. 



510. Anonymous. [J. W.] Skogsentomolgiens stilling i Sverige. [Forest entomology in 

 Sweden.] Tidsskr. Skogbruk 26: 376-378. 1918. 



