542 EXPERIMENT STATION RECORD. [Vol.43 



direct relation between the variety of pollen used and the ratio which exists 

 between plump or well-developed seeds and mature fi'uit. This ratio is fairly 

 constant for the variety regardless of the kind of pollen applied. 



There was evidently no relation existing between the degree of fruitfulness 

 of reciprocal crosses. The same results in crossing were secured whether the 

 varieties of a giveji species were closely related or noiirehited. The species of 

 P. domestica and P. triflora may be considered intersterile for all practical 

 purposes. 



Bud selection investigation with eitrus fruits, A. D. Shamel (I'roc. Aiiicr. 

 Soc. Hort. Sci., 16 {1919), pp. 70-76}.— A contribution from the Bureau of 

 Plant Industry of the U. S. Department of Agriculture, comprising a general, 

 summary of the author's work with citrus fruits. See also a previous note| 

 (E. S. R., 43, p. 439). 



FORESTRY. 



A handbook of forestry, A. D. Webster {London: WiUiatn Rider d Sons, 

 Ltd., pp. VIII-{-216, figs. 6). — A small handbook of concise notes, rules, and 

 tables, relative to trees and their timber. 



The forest manual, 1919 {Augusta: Maine Forestry Dept., 1910, pp. 93). — • 

 This manual presents information relative to the organization of the Maine 

 Forestry Department, instructions to fire wardens, the forest-fire laws applicable 

 to the Maine Forestry District, and the forest laws applicable to the State at 

 large. 



Report of the director of forestry for the fiscal year ended March 31, 

 1919, R. H. Campbell et al. {Dept. Int. Canada, Rpt. Dir. Forestry, 1919, pp. 

 52, figs. IJf). — The report includes a review of the .several lines of work con- 

 ducted by the forestry branch of the Canadian Department of the Interior, and 

 detailed reports of the work of the tree-planting division and on the forest ^ 

 reserves in Manitoba, Saskatchewan, Alberta, and British Columbia, together | 

 with the report of the forest-products laboratories of Canada. 



Report on forest administration for the year 1918, B. Cubitt {Fed. 

 Malay States, Forest Admin. Rpt. 1918, pp. 43). — The routine report on the ad- 

 ministration and management of the State forests, including tabular data on 

 forest areas, forest surveys, work of reproduction and improvement, yields of 

 major and minor forest products, revenues, expenditures, etc. A list of the trees 

 mentioned in the report is also appended, .showing the vernacular or English 

 name, the botanical name, and the uses of each tree. 



Department of forestry: State forestry. Report for the year ended 

 31st March, 1919, E. P. Turner et al. {Neiv Zeal. Dept. Lands and Survey, 

 Ann. Rpt. Forestry Branch, 1918, pp. Jf3). — ^A report on the administration and 

 management of the indigenous forests. State nurseries, and plantations, includ- 

 ing also reports upon afforestation operations in the North and South Islands 

 and extracts from reports by conservators of State forests, together with data 

 on revenues and expenditures, imports and exports of timber, yield in sawed 

 timber, the present forest areas, etc. 



The next steps in the forestry program, F. L. Moore et al. {[New Yorlc^: 

 Rpt. Com. Forest Conserv., Amer. Paper and Pulp Assoc., 1920, pp. 8). — This 

 comprises a report of the committee on forest conservation of the American 

 Paper aiid Pulp Association at the annual meeting, April 15, 1920. 



The forestry situation in Illinois, R. S. JMiller {Trans. III. Hort. Soc., 

 n. ser., 53 {1919), pp. 68-75).- — The author briefly summarizes the activities of 

 the State Forester since the creation of this office on July 1, 1919, outlines a 

 tentative forestry program, and briefly summarizes the present forestry situa- 

 tion in Illinois. 



