178 HORTICULTURE [BoT. Absts., Vol. X, 



1179. Be VAN, W. Pirina. Cyprus Agric. Jour. 16: 37. 1921. — Pirina is a liquid product 

 obtained from the olive. Analysis shows that it contains 5-12 per cent of oil depending on 

 method of extraction. In its crude state it is suitable only for fuel purposes, though it is 

 claimed that the oil, if it could be extracted, would be very useful in soap making. — W. Stuart. 



1180. Cruess, W. v., and A. W. Christie. Dehydration of fruits (a progress report). 

 California Agric. Exp. Sta. Bull. 330. 50-77 . 1921. — A table is given listing in brief form the 

 tested methods of preparation and conditions of dehydration recommended for various fruits. 

 These recommendations apply to the air-blast tunnel type of dehydrater, which so far has 

 proved most satisfactory for general fruit dehydration. — Further investigations are under way, 

 many by operators of dehydraters, on various phases of dehydration. It is fully expected, 

 therefore, that many of the present practices may be greatly modified during the next few 

 years, making it necessary to revise accordingly the recommendations given in the submitted 

 table. — A. R. C. Haas. 



1181. M[ilsum], J. N. Crop records of oil palms. Agric. Bull. Federated Malay States 8: 

 247-255. 1920 [1921]. — The yield of the oil-palm, Elaeis guineensis, is given. — I. H. Burkill. 



1182. WiLMORE, W. W. What dahlia produces the most tubers? Florists' Exchange 49: 

 706, 1920. — The author has found the following varieties heavy producers in the order named: 

 "Earl of Pembroke," "Mrs. Chas. Turner," "Cornucopia," "A. D. Livoni," "Robert Broom- 

 field," and "Kreimhilde." He has known the 1st to produce, from a single small tuber, 

 clumps weighing 6-8 pounds, and thinks it probably could be made to yield 10-12 pounds on 

 heavily fertilized soil. For root production seedlings as planting stock would be more econom- 

 ical than tubers, the 1st year seedlings being conspicuously heavy root producers. It is con- 

 sidered likely that the chemical composition of different varieties will vary as widely as it does 

 in the sugar beet. — Lua A. Minns. 



VEGETABLE CULTURE 



1183. Addis, J. M. Experimentos con boniatos. [Experiments with sweet potatoes.] 

 Rev. Agric. Com. y. Trab. [Cuba] 4: 478^79. 1921. — Yields of different varieties of sweet 

 potatoes {Ipomaea batatas) and yield of plants grown from large, medium, and small potatoes of 

 each variety are compared. In 1920 the plants from medium-sized tubers gave the larger yields 

 in most cases. — F. M. Blodgett. 



1184. Deshmukh, G. B. Some tests of garden vegetables in Singapore-lettuces. Gardens' 

 Bull. Straits Settlements 2: 421-422. 1921. — Lettuces of different origin were cultivated 

 comparatively with the object of ascertaining which races do best in the climate of Singapore. — 

 /. H. Burkill. 



1185. Gibson, Henry. When you make your plans. Card. Mag. 32: 232-235. 5 fig. 

 1921. — The author discusses the planning of a practical garden including vegetables, fruits, and 

 various kinds of herbaceous and woody ornamentals. Directions and plans for the vegetable 

 garden are given. — H. C. Thompson. 



1186. Kruhm, Adolph. Why dont the lettuces "head"? Gard. Mag. 33: 113. 1921.— 

 This article answers the question by suggesting varieties which will form heads under different 

 temperature conditions provided the plants are properly spaced and given good cultural treat- 

 ment. — H. C. Thompson. 



1187. ViLMORiN, J. DE, ET A. Meunissier. Formes diverses de haricots d'Espagne. 

 [Diverse forms of Spanish beans.] Jour. Soc. Nation. Hort. France 22: 131-134. 1921. — The 

 variability of the Spanish bean (Phaseolus multiflorus), which is grown as an ornamental 

 climber in France, is discussed. Discriptions are given of various forms which have originated 

 by accidental crossing with the common bean. From a black-seeded variety 10 distinct colors 

 appeared in the 2nd year and at least 40 forms could be recognized. — H. C. Thompson. 



