44 EXPERIMENT STATION RECORD. 



resistant to tlie extreme drought in 1911 were green ash, yellow pine, honey 

 locust, and red cedar. i 



Summing up the work of sand hill planting as a whole, it appears that the 

 use of well-grown and seasoned nursery transplants, together with planting as 

 early in the spring as possible will result in a relatively high percentage of 

 success in the field. 



Calif oraia Redwood Park, A. A. Taylor (Sacramento, Cal., 1912, pp. ISO, 

 pi. 1, figs. IS). — ^A historical, descriptive account. 



Progress report of forest administration in Baluchistan for 1911-12, 

 MuLRAJ and H. Dobbs (Rpt. Forest Admin. Baluchistan, 1911-12, pp. III+36). — 

 This is the usual progress i-eport relative to the constitution, management, and 

 administration of the state forests in Baluchistan, including a financial state- 

 ment for the yeal" 1911-12. The more important data relative to alterations in 

 area, forest surveys, working plans, yield in forest products, revenues, expendi- 

 tures, etc., are appended in tabular form. The report is reviewed by the revenue 

 commissioner. 



The seed test in word and picture, Busse (Ztsclir. Forst. u. Jagdw., Jf5 

 (1913), No. 8, pp. lllt-18o, fig. 1). — A review with supplementary notes of 

 Haack's extensive experiments on the testing of pine seeds (E. S. R., 27, p. 243). 



Effect of forest fi^res on standing hardwood timber, W. H. Long ( U. S. Dept. 

 Agr., Forest Serv. Circ. 216, pp. 6). — A discussion of some of the direct and 

 immediate injurious effects of light fires in a forest, based on a study of forest 

 conditions in the Ozark Mountains of Arkansas. Special attention is called to 

 the damage to merchantable timber evidenced by fire scars which afford an 

 entrance for destructive worms and rots. 



Pith-ray flecks in wood, H. P. Brown ( U. S. Dept. Agr., Forest Serv. Circ, 

 S15, pp. 15, pis. 6). — This comprises a study of the cause and occurrence of pith- 

 ray flecks in wood, including a review of the literature on the subject. The 

 subject matter is discussed under the general headings of previous investiga- 

 tions, origin of pith flecks, occlusion of the larval passages, groups and species 

 of trees affected, geographic distribution of the cambium miner, factors affect- 

 ing local distribution of larvae and passages, taxonomic value of pith flecks, 

 and deteriorative effect on quality of wood. A bibliography is appended. 



The author's investigation confirms the conclusions of Kienitz," an earlier 

 investigator, that pith flecks are caused by the larva of a dipterous insect living 

 in the cambium during the growing season. Since pith flecks are clearly of 

 pathologic origin and their distribution in genera, species, and individuals is 

 extremely irregular and uncertain, they do not have the taxonomic value at- 

 tributed to them by some earlier writers on wood. 



Pith flecks may mar the natural beauty of the wood by causing discoloration 

 and in some woods they cause definite areas of disintegration in which normal 

 tissues become involved. 



DISEASES OF PLANTS. 



The consideration of meteorological conditions in reports on plant pro- 

 tection from the principal stations for plant diseases, R. Schander (Jahres- 

 6er. Ver. Angew. Bot., 9 (1911), pp. 1-22). — From an examination of crop and 

 price statistics regarding wheat and potatoes and of the records of weather 

 and plant diseases for several years, the author concludes that fuller and more 

 exact knowledge of the relations existing between these two factors is highly 

 desirable, as is also a closer collaboration between the organizations for plant 

 protection and the meteorological institutions. 



•Bot. Centbl., 14 (1883), pp. 21-26, 5G-G1. 



