3 '6 



THE ALUMNI JOURNAL. 



and concisely everything that its title, 

 ''Business Hints to Pharmacists " implies. 



The vast interest taken in this course 

 of lectures in the past and the flattering 

 attendance upon them is evidence of 

 their popularity and value. 



No pharmacist in New York, Brook- 

 lyn, or the neighboring Jersey towns, 

 can afford to miss Mr. Hopping's lecture, 

 and to all these, as well as their friends, 

 a most cordial invitation is extended. 



NEW FOREIGN LITERATURE. 



Fauna und Flora des Golfes von Neapel und 

 der angrenzenden Meeres-Abschnitte. Heraus- 

 gegeben von der zoologischen Station zu Nea- 

 pel. XXIII. Monographic :Jatta, I cefalopodi 

 del golfo di Napoli (Sistematica). Berlin, 1895. 

 A'. Friedliitider & Sohn, 4". XI, 264 pp. ^1/^/64 

 Zmkotyp. im Text u. i Atlas. 



Clowes, F., and J. B. Coleman. Elementary 

 quantitive chemical analysis. Lotidon, 1896. 

 8V 254 pp. 



Dixon, H. N. The Students Handbook of 

 British Mosses. London, 1896. 8". With Jllustr. 



Martin, E., L'Opium, ses abus. Mangeurs et 

 fumeurs d'opium, morphinomanes. Paris, 1896. 

 8". 183 pp. 



Hospitaller, E. H carburo di calcio e I'aceti- 

 lene o gaz elettrico, con note e citazioni del 

 traduttore. Milano, 1896. 16''. 127 pp. 



Billings. J. S., S. W. Mitchell and D. H. 

 Bergey. The Composition of expired Air and 

 its Effects upoa Life. London, 1896. 8". 84 pp' 



Engler, A., und K. Prantl. Die natiirlichen 

 Pflanzenfamilien nebst ihren Gattungen und 

 wichtigeren Arten, insbesondere den Nutz- 

 pflanzen, unter Mitwirkung zahlreicher hervor- 

 ragender Fachgelehrten begriindet von E. und 

 P., fortgesetzt von .£. III. Tl, 4. n. 5. Abtlg. 

 Leipzig, 1896. W. Engelniann. 8". 



Green, J. R. A Manual of Botany. Vol. II. 

 London, 1896. 8^. 554 pp. S. 1895 Nr. 2536. 



Leger, E. Les Aicalo'ides des Quinquinas. 

 Paris, 1896. 8°. 280 pp. 



V. Martins, C. F. Ph., A. W. Eichler et Ign. 

 Urban. Flora brasiliensis. Enumeratio plan- 

 tarum in Brasilia hactenus detectarum. Fasc. 

 118 u. 119, Mo7iachii, 1896. Fol. 248 pp. Mit. 

 28 Taf. und 178 Sp. Mit 24 lith. Taf. 



Ascherson, P. Synopsis der mitteleuropai- 



schen Flora. I Bd. i. Lfg. Leipzig, 1896. 

 W. Engetmantt . 8". p. 1-80. 



Soil in 3 Bdn., a 12 Lfgn., erscheinen. 



Trillat, A. La Formaldehyde et ses applica- 

 tions pour la desinfection des locaux couta- 

 mines. Paris, 1896. 8". VIII, 127 pp. 



Bibliotheca botanica. Original-Abhandlungen 

 aus dem Gesammtgebiete der Botanik. Her- 

 ausgegeben von Chr. Luerssen und B. Frank. 

 37 Heft. Die Milchsafthaare der Cichoriaceen. 

 Elne anatomisch-physiologische Studie von 

 Rch. Zander. Stuttgart, 1896. E. Niigele. 4", 

 44 pp, Mit 2 Taf. 



Eder, J. M., und E. Valenta. Versuche iiber 

 Photographic mittelst der Roatgen'schen Strah- 

 len. Herausgegeben mit Genehmigung des k. 

 k. Ministeriums fiir Cultus und Unterricht von 

 der k. k. Lehr-und Versuchs-Anstalt fiir Photo- 

 graphie-und Reproductions- Verfahren in Wien. 

 Halle, 1896. W. Knapp. Fol. 15 Taf. Mit 16 

 pp. Text. 



Dommer, F. L' Incandescence par le gaz et 

 le petrole. L'acetyleae et ses applications. 

 Paris, 1796. 1 60. ///. 



Glucosides of Black and White Mus- 

 tard. — Dr. Gadamer, of Marburg, has investi- 

 gated the glucosides present in sinapis alba and 

 brassica nigra. He found (i) sinigrin (potas- 

 sium myronate). 



/OSOoOK 

 C— S.C0H11O5 + OH., 



IINC3H5 



in black mustard only. After removing the 



water of crystalization by drying at 100°, the 

 melting point is 126-7°. Its decomposition 

 products differ according to the reagents used. 

 With the enzyme myrosin, also contained in 

 mustard, it splits into "mustard oil" (allyl 

 isothiocyauate), potassium bi-sulphate and 

 grape sugar; sulpnur, carbon-disulphide and 

 allyl cyanide are also formed. Other reactions 

 with silver nitrate and barium hydroxide are 

 described. (2) Sinalbin is only found in white 

 mustard. It has the formula C3oH42NaS20ig + 

 5H0O. It is easily soluble in water, difficultly 

 in alcohol. In presence of myrosin it forms a 

 mustard oil, which is not allyl isothiocyauate. 

 (3) Sinapin is regarded as sinapic acidcholine 

 ester, and hitherto has been obtained only as 

 the bisulphate C16H2 iN03HS04+2H20, in 

 which form it is also found in black mustard. 

 Sinapin is easily changed by free alkali, a strong 

 yellow coloring matter being formed. It can 

 Le used as an indicator in alkalimetry. Sinapic 

 acidCiiHi205 is, according to Gladamer, di- 

 methylssculetmic acid, and forms yellow white 

 crystalline needles m.p. 191-2. — Naturforscher- 

 versanintlung. — Phat . four. 



