248 COMMERCIAL SUPPLIES [Bot. Absts. 



content of various parts and the results produced when various percentages of stems and roots 

 were added to the leaves: Leaf and secondary stems or leaves with 10 per cent of secondary- 

 stems are much higher than the required U. S. P. content. That the whole plant, with or 

 without the root, can be used fur a commercial preparation that will meet the desired 

 standard of 0.25 per cent of total stramonium alkaloids. — Anton Hogstad, Jr. 



1724. Lynn, E. V. Ozonides and peroxides of the terpenes as therapeutic agents. Jour. 

 Amer. Pharm. Assoc. 8: 103-104. 1919.— The view that oxygenated constituents of the vola- 

 tile oils are the bearers of therapeutic properties, whereas the terpenes are regarded as mere 

 diluents and hence of little value, has been shattered by a study of the products resulting 

 from the oxidation of the terpenes with either atmospheric oxygen or ozone. The products 

 of the action of ozone on the terpenes are termed ozonides and those resulting from the action 

 of atmospheric oxygen on unsaturated hydrocarbons are called peroxides. Emphasis is placed 

 on the necessity for further study of the chemical products that result from the initial addi- 

 tion of oxygen to the terpenes and the subsequent rearrangements of the labile oxides, both 

 ozonides and peroxides. — Anion Hogstad, Jr. 



1725. Lynn, E. V. Camphene in hemlock oil. Jcur. Amer. Pharm. Assoc. 8: 104. 1919. 

 — Brief report on the identification of camphene in hemlock oil, the identity of which was 

 established by converting it into borneol, m.p. 204°, by the Bertram-Walbaum hydration re- 

 action. — Anton Hogstad, Jr. 



1726. Miller, E. R., and E. V. Lynn. Oleoresin of Pinus ponderosa. Jour. Amer. 

 Pharm. Assoc. 8: 103. 1919. — A preliminary note on the examination of the oil obtained 

 from the oleoresin of Pinus ponderosa by steam fractionation, to determine its constituents 

 as well as to isolate the nopinene. Results to be reported elsewhere. — Anton Hogstad, Jr. 



1727. Partridge, William. Note on the assay of red Cinchona bark. Amer. Jour. 

 Pharm. 91: 382-383. 1919. [Reprinted from The Analyst, March, 1919.]— Author reports 

 that unsatisfactory results have been obtained in the assay of Cinchonae rubrae cortex B. P., 

 1914, and suggests that there be a reduction in the amount of water used, making it 12 mils 

 of water instead of 22 mils for the 10 grams of powdered drug. By using this proportion of 

 water, higher contents of total alkaloids were obtained on three occasions, the increases being 

 respectively 2.02, 1.16 and 1.46 per cent above the amounts found when pharmacopoeial 

 instructions were followed. — Anton Hogstad, Jr. 



1728. Phillips, Max. An unusual oil from Monarda punctata. Jour. Amer. Pharm. 

 Assoc. 8: 177-179. 1919. — The oil contains hydrothymoquinone and the plant resembles 

 Monarda fistulosa in its phyto-chemical constituents. — Anton Hogstad, Jr. 



1729. Phillips, Max. The Volatile oil of Canada balsam. Jour. Amer. Pharm. Assoc. 

 8: 175-179. 1919. — A preliminary investigation of the volatile oil of Canada balsam, in which 

 the presence of pinene has been confirmed. There is at least one other terpene present, as 

 indicated by the boiling-points of certain fractions and by the benzylamine base of the frac- 

 tion obtained at 173-178°C. — Anton Hogstad, Jr. 



1730. Postern ak, S. Sur deux sels crystallises du principe phospho-organique de reserve 

 des plantes vertes. [Two phospho-organic salts in the reserve of green plants.] Compt. Rend. 

 Acad. Sci. Paris 168: 1216-1219. 1 fig. 1919. 



1731. Power, Frederick B., and Victor K. Chesntjt. Ilex vomitoria as a native source 

 of caffeine. Jour. Amer. Chem. Soc. 41: 1307-1312. 1919. — Ilex vomitoria contains a large 

 amount of caffeine and no other North American species of Ilex contains this substance; nor 

 is it found in the European holly (Ilex aquifolium Linne\). — J. M. Brannon. 



1732. Schaefer, Hugo H. Some variations in Cinchona bark and its preparations. Jour. 

 Amer. Pharm. Assoc. 8: 11-13. 1919. — Report on the examination of several Cinchona barks, 

 samples of fluid extracts of cinchona and tinctures of cinchona, which meet the requirement 



