i;)17] FORESTRY. 45 



Indiana planted in the park at the reserve, togetlier with a geuerai list of 

 trees and shrubs in the park. Some miscellaneous papers dealing with woodlot 

 problems and forest planting are also Included. 



Report of the department of forestry of the State of Pennsylvania for the 

 years 1914-15, K. S. Conklin {Rpt. Fenn. Dept. Forestry, 191Ii-15, pp. 2!ft, pis. 

 n). — A report of the department of forestry for the years 1914 and 1015, re- 

 viewing forest protection work, development work and operations on the State 

 forests and nurseries, lumbering operations, timber sales, surveys, etc. 



Report of the committee on forests, C. Leavitt (Com. Conserv. Canada Kpt., 

 7 (1916), pp. 41-52, pis. 2).— A short r6sum6 of recent activities in forestry 

 and fire pi'olectiou in Canada. 



Progress report on forest administration in the Northwest Frontier 

 Province for the year 1915-16, R. Parnell (Rpt. Forest Admin. North-West 

 Frontier Frov., 1915-16, pp. S+II+IS+XXV).— The usual progress report on" 

 the administration of the State forests in the Northwest Frontier Province, 

 including a financial statement for the year 1915-lG. All important data relative 

 to alterations in forest areas, forest surveys, working plans, forest protection, 

 miscellaneous work, revenues, expenditures, etc., are appended in tabular form. 



Progress report of forest administration in Baluchistan for 1915—16, 

 MuLKAj (Kpt. Forest Admin. Baluchistan, 1915-16, pp. II +28). — A report 

 similar to the above relative to the administration of the State forests in Balu- 

 chistan for the year 1915-16. 



Ecology and silviculture in the southern Appalachians: Old cuttings as a 

 guide to future practice, E. H. Fkothingham (Jour. Forestry, 15 (1911), No. 

 3, pp. S.'iS-3Jf9). — A paper on this subject presented at the New York meeting 

 of the Ecological Society, December 28, 1916. 



Reforesting Pennsylvania's waste land. — What and how to plant, W. G. 

 CoNKi.iN (Fenn. Dept. Forestry Bui. 15 (1916), pp. 34, pis. i5).— This bulletin 

 contains practical suggestions for reforesting waste lands in Pennsylvania, based 

 upon operations on the State forests. 



Silvicultxiral problems on forest reserves, B. E. Feenow (Com. Conserv. 

 Canada Rpt., 7 (1916), pp. 66-74).— This paper reviews a number of the diffi- 

 culties that are encountered in practicing the art of producing forest trees, with 

 special reference to conditions in Canada. 



Some problems in light as a factor of forest growth., R. Zon (Jour. For- 

 estry, 15 (1917), No. 2, pp. 225-232). — In this paper the author calls attention 

 to important phases in the study of light that deserve particular consideration by 

 the forester, and outlines tests for determining the effect of soil fertility upon 

 shade endurance of forest trees and the effect of heat upon the tolerance of forest 

 trees. 



The role of light in natural and artificial reforestation, C. G. Bates (Jour. 

 Forestry, 15 (1911), No. 2, pp. 233-239).— The author briefly reviews the litera- 

 ture of the subject, and reaches the conclusion that " if we are to obtain a solu- 

 tion of the problems which are conceived in the terms ' tolerance ' and ' intol- 

 erance,* and if we would give quantitative expression to the requirements of the 

 various species of light we must consider this factor in its full meaning of 

 radiant energj' ; we must consider the physical value of radiant energy rather 

 than its chemical value ; and finally we must determine its effective physical 

 value in combination with the heat of the air rather than its theoretical physical 

 value." 



Seeding habits of spruce as a factor in the competition of spruce with its 

 associates, L. S. Murphy (Plant World, 20 (1911), No. 3, pp. 87^90).— A short 

 contribution on this subject, based on observations made in the fall of 1910 



