954 EXPERIMENT STATION RECORD. 



India rubber, gntta-percha, and balata, W. T. Brannt [PJiiludclpltia: Henry 

 Careij Bainl ct- (y>., 1900, pji. A'A'7T'+ .l.'S, jigs^. J.}). — Discui^piiui of tlie " ocrurrence, 

 geographical distribution, and cultivation of rubber plants; manner of olitaining and 

 preparing the raw materials; mode of working and utilizing them, including washing, 

 loss in washing, maceration, mixing; vulcanizing rubber and gutta-iicrcha cijtupounds 

 and utilization of waste; balata and statistics of commerce." 



The caoutchouc plants and their culture, O. Warburg {l>ie KnulxcliKL-jijIdiizen 

 nndihre Kultur. Berlin: Kolonial-ir'niscliqftliches Komitee, lUOO, j)j). IS-'/, jii/.f. 11). — 

 This work purposes to sum up and critically examine the many detailed observalions 

 on caoutchouc plants, the object being to give a true idea of these plants, their cul- 

 ture, etc. The first chapter treats of caoutchouc production and consumjjtion, thus 

 giving a general ideaof the commercial importance nf the sul)ject in different countries. 



Gums, resins of exotic origin, and vegetables -which, produce them, par- 

 ticularly in the French colonies, H. J. de Cokdemoy ( Gommes, resines, d'origine 

 exotique, ct vcgctuux qui leu produisent, pjartiadicrniad dans les colonies fraiKjai.ses. Paris: 

 Augusfin Challamel, 1900, pp. 312, figs. 47) . — The work is divided into 3 parts. Part 

 1 defines, gives the general properties, and describes a large number of gums and the 

 trees producing them. In the same manner, jiart 2 treats of resins and part 3 of 

 resin-gums. 



The cultivation of medicinal plants {Amrr. Gurd., ,.',.' {1901), Xo. .>'19, pp. 73, 

 74). — Summarized suggestions of H. H. Rusby, College of Pharmacy, New York 

 City, regarding the jiroVjable profits in growing a nundier of medicinal plants. 



The improvement of the carnation in America, C. W. Ward ( Trans. 3fassachu- 

 setts Jlarl. ,Soc. 1900, pt. 1, pp. 91-101, pis. 0). — Historical notes, brief descrijytion of 

 the process of hybridizing carnations, descriptions of a number of prominent Ameri- 

 can varieties with illustrations, and some statistics concerning the magnitude of the 

 carnation industry in the United States. 



Groff's hybrid gladioli, M. Crawford {Amer. Gard., ..'..' (1901 ], Xn. ,!..'j, [q,. i.:i, 

 132). — ^The requirements of a standard gladiolus are set forth and (jroff IIyl)rid 

 shown to comi)are favorably with it. 



Rose growing under glass, T. Pkice {Amer. Gard., 2,i {1901), Xo. 321, pp. Ill, 

 112, fig. 1). — lV)i)ular directions for soil, planting, watering, ventilation, supports, 

 propagation, and varieties, with notes on insects and diseases of roses. 



On the cross-fertilization or hybridization of roses, S. Mottet {Rev. llort., 73 

 {1901), Xo.3, pp. 07, OS; transl. iu Aincr. Gard., 22 {1901), Xo. 327, pp. 227, 228).— 

 Details of methods. 



Water lily pond, (i. Abbey {Jour. Ifort., S3 {1901), Xo. 2729, pp. 49-Sl,figs.j).— 

 \i\ illustrated outline plan with lists of suitable plants. 



Distribution of seeds, plants, cuttings, etc., E. J. Wickson {CaUfornia ,Sta. 

 l\pt.lS98, pp. 233-236). — Summarized statement of the amount and kinds of seed 

 distributed by the central experiment station since 1886, with financial statement 

 regarding the same for the 6 years ended 1899. 



FORESTRY. 



Report of the forestry substations, V. H. Shinn {California Sta. 

 llpl. ISUS^ 2>2>. -iJS-Jol.fi/s. 7). A report is ^-iven of the history and 

 present condition of the forestr}' substations located at Chico and 

 Santa Monica. The Chico forestry station was originally a part of 

 the Chico ranch, which formerly belonged to General John Bidwell. 

 The previous owner began collecting the native and finer exotic trees 

 as earl}^ as 1856, and notes are given on the present growth of a num- 



