FOKESTRY. 649 



of propa,2:ating them are described in the tirst part of this work, while in the second 

 jtart some resuhs obtained in experiments with different American species and 

 hybrids to determine their relative value on different soils in the Canton de Vaud 

 are recorde<l. 



Chestnut culture, E. B. Exgle {Pennsylvania Dept. Agr. Rpt. lS99,pt. 1, pp. 301- 

 312, figs. 10). — Popular discussion of the culture, propagation, insects, diseases, and 

 varieties of chestnuts. With reference to propagation the author states that "seed- 

 lings grown from Paragon nuts grow more vigorously, form a better union, and make 

 a larger percentage of good trees than seedlings grown from native chestnuts. ' ' 



Oacao industry in Grenada, G. W. Smith and D. Morris {West Indian Bid., 1 

 ( 1900), No. 4, pp. 415-4''^2). — Suggestions regarding the management of cacao groves 

 nid the renovation of old plantations. 



Walnut culture in California, J. 31. Dickenson {California Cidtivalor, 15 {1900), 

 Xo. 12, pp. 177, 183, fig. 1). — Culture and management. 



Notes on the Gladiolus, H. H. Groff {Amer. Gard., 21 {1900), Nos. 304, p. G98; 

 310, pp. 792, 798; 312, p. 830; 313, pp. S4S, 849) .—The characteristics of different 

 strains and hybrids are discussed. 



A summer's work abroad, in school grounds, home grounds, playgrounds, 

 parks, and forests, MiraL. Dock {Pennsylvania Dept. Agr. Bui. 62, pp. 33, pis. 9). — 

 The author visited England, Edinburgh, and Germany, and spent a few days in 

 Switzerland and Paris. Six public bath houses, 14 school buildings, and 110 parks 

 and playgrounds were visited and a tour made through the Black Forest. The more 

 striking features met with in the journey are recounted and furnish much suggestive 

 matter relative to the management and improvement of Pennsylvania school grounds, 

 public parks, and forests, as well as similar institutions in other States. 



FORESTRY. 



Miscellaneous notes in botany and forestry, W. A. Buckhout 



{l\nnsyicania Sta. Rpt. ISOO^pp. '2IiJ5-'2o6.^ p^s. o.,jig. i, charts 3). — 

 The writer reports upon the time and rate of formation of the annual 

 ring- of wood in the European larch and the white pine. Observations 

 were made during the years 1897, 1898, and 1899. In the case of the 

 larches the growth of wood began during the last week in April, with 

 seasonal difi'erences due to temperature, moisture, etc., although their 

 effect was hardly appreciable. The beginning' of wood formation 

 practically coincided with the appearance of new leaves on the larch. 

 Diagrams are given showing the variations in seasonal growth with 

 both species. The absolute growth of the white pine was considerably 

 greater than that of the larch, and the growing season of the pine con- 

 tinued into September while the larch made little or no growth after 

 July. The pine showed greater uniformity in amount of yearh' growth, 

 only yV i"- difference occurring during the 3 years in question, while 

 the larch showed a difference amounting to i\ in. It is thought prob- 

 able that the specimens of larch taken for the experiment were hardly 

 representative, as from their appearance they had probably passed 

 the time of maximum yearly growth. While there have not been suf- 

 ficient experimental plantings to give definite data, the author believes 

 that the larch, while not as long-lived or producing as great a bulk of 

 wood as the pine, can be advantageously grown for many purposes. 



