FORESTRY. 663 



of cacao, vanilla, Peru balsam, coffee, caoutchouc, gutta-percha, and nutmegs are 

 given. The l)est 2)ractices in the case of each of these different crops are concisely 

 summarized. The most attention has been given to the culture of coffee, cacao, and 

 vanilla. An inventory of the i)lant material, etc., gathered on the journey is given 

 in an appendix. 



First year in tropical agriculture, G. Saussine {La premiere annee cV agriculture 

 tropicaJe. Farix: Aiit/n.stiii ClutUamel, 1900, pp. VI-\rS16, figs. 84). — An elementary 

 school text-book on the general subject of tropical agriculture. A discussion of tools, 

 stock, and the usual tropical plants is included. 



Refrigerator cars {Canad. Hort., 25 {1902), No. 10, p. 407). — It is reported that 

 the Hanrahan refrigerator cars running between Grimsby and Ottawa have carried 

 fruit as satisfactorily as the regular express cars. 



Forcing branches of hardy shrubs {Gardening, 11 {1903), Xo. 24S, p. 121). — It 

 is stated that branches of flowering shrubs may be brought into bloom during the 

 winter by timely cutting and bringing into the greenhouse. The branches should be 

 put into a barrel of water in a warm house and occasionally si^rinkled with lukewarm 

 water. The flowering almond {Prunua amygdulus) is especially suited for this work, 

 and if wanted for the Christmas trade it should be cut and brought into the house 

 the latter part of November. Forsythia and ribes may also be treated in the same 

 manner. The forsythia requires a little longer time to come into bloom than the 

 flowering almond, and the ribes about the same length of time. Hardy magnolias 

 have also proved very satisfactory in this work. The white-flowered kinds are stated 

 to produce flowers of a much finer and more satin-like texture than those grown out 

 of doors. Magnolia flowers thus obtained are very durable, remaining in perfect 

 condition sometimes for 8 to 10 days after the develojiment of the flowers. 



Correlation bet-wreen the color of roots of carnations and the flowers {Rev. 

 Hurt. [A/r/x], 74 {1902), No. 24, p. o67).—lt\H stated that Chaljuud has observed 

 that carnations with red roots have red flowers, those with white roots produce white 

 flowers or a white ground, and those with yellow roots produce yellow flowers or a 

 yellow ground. The advantage to be gained from this knowledge is in the produc- 

 tion of new varieties, the color of the flowers being indicated by the color of the 

 seedling roots without waiting for the plants to blossom. 



Raising gladiolus hybrids {Amer. Gard., 23 {1902), No. 418, p. 834). — An 

 account is given of the origin of the hybrid gladiolus Princeps, originated by D. W. 

 Van Fleet. This is a very vigorous growing gladiolus of a true Salvia scarlet color. 

 It was obtained from seed produced as a result of hyl)ridizing G. cruehtus from South 

 Africa with a large-flowered garden variety of the Childsii strain. This gladiolus 

 has been successfully grown nearly everywhere in the United States and in several 

 European countries. 



The book of orchids, W. H. White {London and New York: John Lane, 1903, pp. 

 118, ph. 11). — This is the eighth in the series of Handbooks of Practical Gardening, 

 edited by H. Roberts. The work discusses orchid houses, materials for potting, 

 watering, diseases, etc., and gives brief accounts of 89 genera of orchids and their 

 species, witlv many cultural suggestions. 



Greenhouse construction and management, S. T. Maynard {Massachtisetts 

 State Bd. Agr., Bid. 6, 1902, pp. 29-40, figs. 16). — A popular discussion of materials, 

 foundations, superstructures, painting, glazing, heating, ventilating, beds, benches, 

 and insects. 



FORESTRY. 



Economics of forestry, B. E. Fernow {New York: Thos. Y. Crowell & Co., 

 1902, pp. XII-\^520). — The author treats of forestry from the standpoint of political 

 economy, aiming to present sucli information as is required to fully appreciate the 

 proper role of forests and forest products in public affairs. This is one of a very few 



