FORESTRY. 839 



As a resiiU of a study of the fiorniination. !ik well ns Iho follnr. flowPr. and fnilf. 

 characters of various kumquats, togotlior with tlie material in the princijial 

 herbaria of Europe and America, the author concludes that the Icumquat should 

 be placed in a now genus midway between Atalantia and Citrus. The new 

 genus Fortunella together with the four species known at present are here 

 described. The genus is sulxlividod into the subgenus Euforfunolla and a new 

 tiubgenus Protoci trus. 



Windbreaks, hedges, and ornamentals for irrigated sandy soils of eastern 

 Oregon, R. W. Allen {Orc<i»n t^t>i. Bui. 12') {191')), pp. .l-2.'i. fi</s. 12).— The 

 author discusses in detail the care and develo])meiit of windbreaks for crop 

 protection as well as the use of shade trees, hedges, and other ornamental plants 

 for farmyards. A limited number of native plants that deserve recojnmenda- 

 tion for ornamental use are briefly described. The subject matter is based upon 

 the results of experiments with windbre;iks and ornamental trees that have been 

 conducted at the Umatilla Station during the i)ast five years. The results of 

 these tests are presented in tabular form. 



Flower gardens. — A selected list of books {Xcw Yni-k: N. T. Piih. TAhr., 

 1915, pp. 11). — A selected list of books, prepared by The New York Public 

 Library, dealing with gardens and garden design; si>ecial kinds of gardens; 

 individual plants, flowers, shrubs, and trees; gardens of various countries; the 

 pleasures of a garden ; children's and school gardens ; and miscellaneous garden 

 topics. Books on wild flowers are not included. 



The care of house plants {Mis.^ouri Bot. Gard. Bui., 3 (191^), No. 2, pp. 

 25-31). — This ]>aper points out the usual causes of failure In growing house 

 plants, and indicates in a general way the plants and flowers best adapted for 

 the home during the winter months. 



Geraniums (Missouri Bot. Gard. Bui., 3 (1915). No. 2. pp. 81-33). — During 

 the summer of 1914 the Missouri Botanical Garden made careful observations 

 on 307 varieties of geraniums with reference to heat and drought resistance; 

 profusion of flowers; color, shape, and size of flower clusters; character of 

 foliage, etc. A list is given of 76 varieties for which favorable growth and sat- 

 isfactory flower production have been recorded. 



FORESTRY. 



[Report of] forestry investigations, E. G. Cheyney (Minnesota f^fn. Rpt. 

 1914, PP- 55-59). — This comprises a brief statement of progress made in various 

 lines of work at the Cloquet Forest Experiment Station, silvicultural studies at 

 Itasca Park, and prairie tree planting investigations at Morris. 



Partial data are given in connection with a planting test conducted at the 

 station. It was found that the cost of planting 1.000 trees in a gravelly situa- 

 tion with a wedge spade was $2 as compared with a cost of $4 per thousand 

 where the holes were dug with a mattock. Ninety-one per cent of the spade- 

 jilanted trees were alive in the fall as compared with SO per cent of those 

 l»lanted with a mattock. In other situations, however, the wedge spade was 

 not so satisfactory. 



Among the exotic hardwoods and shrubs being tested several varieties of 

 poplar and willow from China received from the Department of Agriculture 

 are making good growth and give promise of surpassing the native si^ecies. 

 Experiments to determine the success of seed trees for restocking cut-over 

 areas show that only in very favorable situations will reproduction be quick 

 and even then the price of the luml)er left in the seed trees would go a long 

 way toward paying the cost of planting the land uniformly. 



