610 



more 



quality of the seed (Col. Rep. Ann. No. 512, 1906 (for 1905) 

 p. 26). A good yield would be about 500 lb. or 

 of seed giving upwards of 50 per cent, of oil. 



In 1917 there were 3,474 tons of oil value £219,373 imported 

 into this country chiefly from British India (2,962 tons) Java 

 .(450 tons) France (28 tons) (Trade of the United Kingdom, i. 

 1918, p. 174) and in the same year 898,557 cwt. of seed, value 

 £1,281,075, chiefly from British India (866,603 cwt.) and Brazil 

 (11,463 cwt.). It is interesting to note that in 1913 — as shoAving 

 the increase in value— 1,205,537 cwts. value £710,587 were 

 imported (I.e. p. 189). Castor oil is quoted (June 1919) at £96 per 

 ton for pharmaceutical quality, .£93 for first pressing and £91 

 per ton for second pressing, naked in ton lots, deliveries under 

 one ton 10-5. extra (Chem. & Druggist, June 7th, 1919, p. 583). 



Ref. — " Semen Ricini," in Pharmacographia, Fliickiger & 



Hanbury, pp. 567-571. " Ricinus communis" in Med. PI. 



Bentley & Trimen, No. 237, 5 pp. " Castor Oil Plant or 



jQueensland 



pp. 29-34 (Govt. Printer, Brisbane, 1883). Castor Oil, Hand- 



.book No. 20, 1893, Imp. Inst. Series, pp. 1-57. Report on 



the Castor Oils in the Indian Section of the Imperial Institute, 



Deering & Redw^ood, Agric. Ledger, No. 17, 1894, pp. 1-5. 



The Castor Oil Plant, Shin, U.S. Dept. Agric. Msc. Circ. No. 1, 



1897, pp. 1-4. " Le Ricin : Botanique, Culture, Industrie et 



Commerce," Dubard & Eberhardt, in L' Agric. prat, pays chauds, 

 i.» 1901-02, pp. 313-326; pp. 493-520; pp. 616-635; pp. 729- 

 746, with Index Bibhographique, pp. 745-746.—" Note sur 



la Culture du Ricin en Algerie," Riviere, I.e. pp. 747-751. 



" Sur deux Formes de Ricin Cultivees en Abyssinie," Dubard & 



Eberhardt, I.e. iii. 1903-04, pp. 488-490. " Castor Oil," in 



Report of the Controller, Exp. St. Peradeniva, Roy. Bot. Gdn. 



Ceylon, Circ. No. 18, Aug. 1904, pp. 263-269. "Castor Oil 



Bush," Burtt Davy, in Transvaal Agric. Journ. iii. 1904, pp. 



271-280.-: " Castor Oil Plant," Queensland Agric. Journ. xiv. 



April .1904, pp. 284-285; Extract in Agric. News Barbados, 



June 18th, 1904, p. 203. " The Castor Oil Industry," Dau- 



gherty, U.S. Dept. Agric. Year Book, 1904, pp. 287-298. 



" Le Ricin," in PI. Utile du Congo, De Wildeman, iii. Art. xxxiv. 



pp. 588-616 (Bruxelles, 1905). "The Cultivation of the 



pp. 173-177. 



ant, Ercole, in Agric. Gaz. N.S. Wales, xvii. 1906, 

 " Castor Oil and Ground Nut Oil from S. Rho- 

 desia," Bull. Imp. Inst. W. 1906, pp. 97-98.-^" Culture du 

 Ricin et Extraction de I'Huile au Tonkin," Dubard & Eberhardt, 

 in L' Agric. prat, pays chauds, vii. 1907, pp. 345-352 



Castor Bean," Wilcox, in Cycl. American Agric. Bailey, ii. 



pp. 229-231. 



Comm. Prod. India. 



Watt, pp. 915-923 (John Murray, London, 1908). " The 



World's Production of Castor Seed," Journ. Jamaica Agric. See. 



XV. July 1911, pp. 296-303. -"The Cultivation, Production, 



Preparation and Utilisation of Castor Seed," Bull. Imp. Inst. 



