342 EXPERIMENT STATION EECOED. 



The season's work with plant diseases and insects is noted on pages 350 and 

 352, respectively, and a study on water movement in peat on page 322. 



State bog report, H. J. Franklin (Ann. Rpt. Cape Cod Cranberry Growers' 

 Assoc., 27 (1914), pp. 5-27). — A summarized account of the above noted work 

 at the cranberry substation. 



[Cranberry investig'ations] (Wisconsm 8ta. Bui. 250 {1915), pp. 28, 29). — 



A brief statement of progress in the station's cranberry work (E. S. R., 31, 

 p. 835). 



The results of the clean culture method of cranberiy bog culture — that is, 

 sanding and draining — continue to demonstrate the efficacy of this mode of cul- 

 tivation in comparison with the older methods of bog management. Most of the 

 new bogs in the State are being installed on the clean culture basis. The attempt 

 of growers to reclaim old bogs by sanding on top after partial attempts at weed- 

 ing and without adequate drainage minimizes materially the advantage of the 

 clean culture process, since the retained moisture facilitates luxuriant moss 

 growth. 



An inspection of most of the Wisconsin bogs by C. L. Shear resulted in the 

 conclusion that the so-called blight, which apparently prevents the development 

 of much of the fruit after blossoming (E. S. R., 31, p. 840), is really due to lack 

 of vitality of the vines caused by improper cultural conditions, more especially 

 insufficient drainage. 



The avocado in California. — I, Culture, production, and marketing, I. J. 

 CoNDiT iCaUfornia Sta. Bid. 254 (1915), pp. 381-394, flffs. 9).— In this paper 

 the author discusses the avocado with reference to its general distribution, eco- 

 nomic importance, climatic requirements, propagation and culture, production 

 and marketing, insects and diseases, and varieties. 



Botanical characters of the leaves of the date palm used in distinguishing 

 cultivated varieties, S. C. Mason (U. 8. Dept. Agr. Bui. 223 {1915), pp. 28, 

 pis. 5, figs. 15). — The results are given of a study of the foliage characters of 

 the date palm, the object of the study being to develop a classification of char- 

 acters adapted to determining varieties. The system of classification devised 

 is here explained, together with the method of recording characters. Descrip- 

 tions are also given of four varieties of the Deglet Noor date showing the 

 application of this system of leaf study. 



Mangoes in Florida, P. H. Rolfs {Florida Sta. Bui. 127 {1915), j)p. 105-138, 

 figs. 19). — ^A practical treatise on mango culture. Consideration is given to the 

 history and range of mango culture in Florida, time of ripening and blooming, 

 methods of propagation, effects of stock on scion, culture, fertilization, market- 

 ing, mango groups and varieties, and culinary recipes. A short bibliography 

 of literature on mango production is appended. 



FORESTEY. 



Forest planting in Vermont as an investment, A. F. Hawes ( Vermont 81a. 

 Bui. 188 {1915), pp. 261-294, pis. 4). — A cultural treatise including a discussion 

 of the possibilities of forest planting in Vermont as an investment. The sub- 

 ject matter is discussed under the following general headings : Suggestions for 

 the prospective forest planter, land which should be reforested in Vermont, 

 safety of an investment in forest planting, kind of trees to plant, methods of 

 planting, convenient planting crew, time of planting, spacing, esthetic planting, 

 cost of planting, care of forest plantation, taxation on forest plantations, re- 

 turns from plantations, profit from forest planting, value of land that can be 

 planted profitably, cost of raising pine lumber, and school-endowment forests. 



