840 EXPERIMENT STATION RECORD. 



than any other evergreen species of Citrus except C. trifoUata. Since it also 

 occurs at the highest altitudes reported for any wild species of the genus, It is 

 believed to be of promise in breeding cold-resistant citrus fruits. Because of 

 its unusually large seeds it promises to yield very vigorous seedlings and to be, 

 in consequence, a useful stocJv on which to graft oranges, lemons, and other 

 cultivated species of the genus. 



A subspecies, C. ichangensis latipes, from Assam is also described. 



Coconuts, the consols of the East, H. H. Smith and F. A. G. Pape (London 

 [1012], pp. LVIII+506, pi. 1, figs. 69). — A handbook of information on the 

 coconut industry, containing special sections on the cultivation of coconuts in 

 various tropical countries, the preparation of copra, the utilization of coconut 

 products and by-products, catch crops, subsidiary industries including cattle 

 rearing, the question of manuring, prevention of pests, and the maintenance 

 of health in the Tropics. 



Report of the work at the experiment station, H. B. Dorner (In Flori- 

 culture Research at the Experiment Station. Urbana: Univ. III., 1912, pp. 

 3-14). — This paper briefly outlines the nature of the floricultural investigations 

 at the station and discusses in detail experiments with carnations and roses 

 conducted by the author in cooperation with A. H. Nehrling. 



Fertilizer experiments with carnations and roses have shown that there is 

 less danger of overfeeding with acid phosphate than with dried blood and 

 potassium sulphate. Where ammonium sulphate is used in the place of the 

 dried blood the soil dries out sooner. If large amounts of nitrogen are used 

 there is greater danger from rust in the carnations. Nitrogen when applied at 

 the rate of 32 lbs. per 100 sq. ft. produces serious damage in the roses which 

 is evidenced by the yellowish, sickly color of the foliage. Grafted roses can 

 stand more nitrogen than roses on their own roots and they also make a 

 stronger growth and are apparently more prolific bloomers than own-root 

 roses. The authors found that carnations grown with commerciiil fertilizers 

 are the equal of those grown with natural manures. 



Hardy perennials and herbaceous borders, W. P. Wright (New York [1912], 

 pp. iWIf. pis. 7Jf. figs. Jf). — A descriptive and cultural account of the best hardy 

 perennials and those plants best adapted for herbaceous borders, including 

 practical suggestions as to how they can be used to the greatest advantage. 

 The text is fully illustrated. 



The g'arden and its planting's, W. Lange (Der Garten und seine Bepflanzung. 

 In Das Lehen der Pflanze. — AM. IV, Die Pflanzen und der Mensch, Vol. I. Stutt- 

 gart, 1913, pp. 1-20S, pis. 8, figs. 131).— In this work the author treats of both 

 ornamental and utility gardens, with special reference to the selection and 

 grouping of their plant material according to the physiognomy and characters 

 of the individual plants. 



The first 2 chapters give a historical sketch of plant utilization and the 

 develoi)ment of the modei*n garden. Chapter 3 discusses the adaptability of 

 the more important plants for various situations, on the basis of a knowledge 

 of plant physiognomy and characters. Chapter 4 discusses garden art and 

 horticulture, including the introduction of foreign cultures into Germany. 



Suburban g'ardens, Grace Taror (New York, 1913, pp. 207, figs. 21). — ^A 

 popular treatise on garden designing for suburban homes. 



Every day in my g'arden, Virginia E. Verplanck {New York, 1913, pp. 

 XXIV-\-]74, pis. IG). — A popular guide for the cultivation of flowers, fruits, and 

 vegetables in which the author has laid out a working plan for every day of 

 the year. 



