No. 3. April, 1921] PHARMACOGNOSY 301 



2095. Jermstad, Alex. Sur la determination de la teneur de I'opium en morphine. [On 

 the determination of the strength of opium in morphine.] Repertoire Pharm. 32:257-262. 

 1920.— All methods may be grouped under six headings, viz: (1) Alcohol; (2) water (Helfen- 

 berg's); (3) lime; (4) precipitation and reduction; (5) polarimeter; (6) other methods. Method 

 3 is employed by the French, English, Dutch, Japanese, Spanish, and American Pharmaco- 

 poeias. The author proposes a modification of Helfenberg's method which has the follow- 

 ing advantages: (1) Use of equal quantities of opium and reagents; (2) methyl-red is exact 

 and active as an indicator; (3) no acetic ether; (4) no results rendered inexact by alkalinity 

 of water; (5) possibility of combining the determination of morphine with that of the extract 

 of opium. — Heber W. Young'ken. 



2096. Kilmer, F. B., and Ralph O. Smith. Belladonna cultivation in a practical way. 

 Amer. Jour. Pharm. 92 : 620-630. 7 pi. 1920.— A brief summary of the results obtained in 

 the cultivation of belladonna at the Johnson & Johnson belladonna farm, since 1900. Authors 

 discuss climatic and soil conditions, methods of cultivation, harvesting, yield, and cultural 

 experiments. — No successful cultivation, as far as the authors are aware, has been made on 

 this continent by sowing seed in open ground. At least two crops of leaves can be harvested 

 from first year plants; from second and third year plants two to four cuttings are usual. The 

 yield of leaves and stems is greatest from second and third year plants. The yield per 1000 

 plants was as follows: Second year plants— herb 1177 pounds, alkaloid 0.891 pound; first year 

 seedlings (potted plants)— herb 527 pounds, alkaloid 0.313 pound; first year seedlings (cold 

 frame plants)— herb 534 pounds, alkaloid 0.289 pound. — Authors also submit data to the 

 effect that the tops of belladonna, including stems, fully meet the requirements of the U. S. 

 P.; they see no reason why belladonna herb, especially that obtained from cultivated plants, 

 should not be admitted to the Pharmacopoeia under proper restrictions as to alkaloidal con- 

 tent, etc. — Anton Hogstad, Jr. 



2097. King, E. D., Jr. Poisonous plants of the south. Jour. Amer. Vet. Med. Assoc. 57: 

 302-313. 1920.— This is a list of plants with brief remarks regarding properties, and treat- 

 ment of poisoned animals. — C. D. Marsh. 



2098. MiCHELETTi. Piedmontese peppermint oil. [From La Parfumerie Moderne Oct. 

 1920.] Chem. & Druggist 93: 1507. 1920.— Peppermint oil distilled from Mitcham pepper- 

 mint, cultivated about Vigone and Pancalieri and in the province of Turin, is of exceptional 

 quality on account of the delicacy of its perfume and sweetness of its aroma. Over 25,000 

 kilos are produced annually. — E. N. Gathercoal. 



2099. Pammel, L. H. Alsike clover poisoning. Amer. Jour. Vet. Med. 15:437-438. 

 1920. — A description of some cases of poisoned horses with an account of the symptoms 

 exhibited. — C. D. Marsh. 



2100. Pammel, L. H. Castor seeds poisonous. Amer. Jour. Vet. Med. 15: 171-172. 1920. 

 — The author quotes E. White, apparently from a letter, who gives a detailed account of the 

 poisoning of horses by castor beans, with a description of the symptoms, post-mortem find- 

 ings, and treatment. — C. D. Marsh. 



2101. Pammel, L. H. European morning-glory suspected of being poisonous. Amer. Jour. 

 Vet. Med. 15 : 439. 1920. — This is an account of a sick horse which possibly had been poisoned 

 by Convolvulus arvensis. — C. D. Marsh. 



2102. Pammel, L. H. Is the dogwood poisonous? Amer. Jour. Vet. Med. 15: 66. 1920. — 

 The author in reply to a query about the poisonous properties of Cornv^ asperifolia expresses 

 his opinion that it is not toxic. — C. D. Marsh. 



2103. Pammel, L. H. Ground cherry leaves supposed to be poisonous. Amer. Jour. Vet. 

 Med. 14: 606. 1919.— In reply to a query about Physalis longifolia it is stated that the green 

 fruit and leaves are poisonous. — C. D. Marsh. 



