602 EXPERIMENT STATION RECORD. 



Propagation of carnations {Amer. Gard., 18 {1S97), No. 110, pp. 65, 66, fig. 1). ^ 



Hardy palms in Florida, T. L. Mead {Florida Farmer and Fruit Grower, 9 {1S97), 

 Xo. 5, p. 67). 



Classification of sweet peas (Florists' Exchange, 9 [1897), No. 1, p. 6, figs. 12).— 

 This classification is bused ou form of llower, especially of the standard, instead of 

 on the color. 



Some problems in experimental horticulture, W. M. MUNSON {Am,er. Gard., 

 IS (1897), Xo. 108, pp. 41, 4..'). — Notes are given on plant breeding, acclimatization, 

 domestication, etc. 



Report of horticultural work, S. A. Beach and W. Paddock (Xew York State 

 Sta. Ilpt. 1804, pp. .572-7(16). — Brief outline of the work of the year, reprints of 

 bulletins, and investigations noticed elsewhere. 



The nursery book, I^. H. Bailev (Xew York: The Macmillan Co.. 1896, pp. XI, 

 365, figs. 152). — This is a revised and enlarged edition of this work, first published in 

 1891. In the present edition it is deemed best to treat fully the prevalent assump- 

 tion that grafting is necessarily a devitalizing process, and also to analyze the 

 unclassified knowledge respecting the mutual influences of stock and scion and 

 the respective peculiarities of root-grafted and bud-fruited trees. 



In the nursery list, which has been considerably extended over that of the pre- 

 vioiis editions, the author has incorporated many notes and suggestions from corre- 

 spondence, as well as the results of experiments of tlie past 5 years. 



A chapter ou pollination, which was included in tlie first edition, is omitted from 

 the x^reseut one, since a similar one was incorporated in tlie author's work on "Plant 

 Breeding." Both the "Nursery Book" and "Plant Breeding" are included in the 

 " Garden Craft Series "' of the publishers. 



FORESTRY. 



Timber pines of the Southern United States, C. Mohr ( TJ. 8. 

 Dept. Agr., Dirision of Forestry Bui. 13, pp. 1-130, pis. 20, Jigs. 12). — A 

 series of monographs is given relative to the more important timber 

 pines of the South, viz, the long-leaf j)ine [Piniis palustris), the Cuban 

 pine (P. heterophylla), the short-leaf pine (P. echinata), the loblolly pine 

 (P. tcvda), and the spruce i:)ine (P. glahra). 



The geographical distribution, characteristics of distribution in dif- 

 ferent regions, supply and production of products, nomenclature and 

 classification, physical and mechanical characteristics, development, 

 enemies, natural reproduction, and forest management are givdu for 

 each species. 



Of the different kinds enumerated the long-leaf pine is of the greatest 

 economic importance. Unlike some of the other species, the locality 

 where grown seems to have no effect on the qualitj- of this pine. The 

 rate of growth, reference to which has already been given (E. S. E., 7, 

 p. 773), is slower than for the other s])ecies. This applies to growth in 

 both height and diameter. The visible supply of long-leaf pine is given, 

 and at the present rate of exploitation it will be exhausted in 40 to 50 

 years unless some system of forest management be adopted. The slow 

 rate of growth and light requirements of the tree make rational man- 

 agement especially desirable, otherwise this valuable timber will soon 

 be exhausted. 



