378 EXPERIMENT STATION RECORD. 



described. The method of digestion in snlphuric acid, as in the Kjeldahl method 

 for nitrogen as employed liy Garola, is favorably noted. 



Determination of mustard oil in feeding stuffs, M. Passon {Ztschr. au<jew. Chem., 

 1S90, Xo. 14, pp. 422, 42.]; ahs. in Anahjsi, 21 (1890), Sej)t., j). 233). 



The detection of formol (formic aldehyde) in milk, G. DENiGi^;s {Jour, riiarm. 

 et Ch'im., ISOn, Sept.; ahs. in Milch Ztg., 25 {1S9(1), Xo. 2, p. 667). 



Method for detecting borax in butter, Planchon and Vuafi.akt {Jour, rharm. 

 et Chilli., lS9i;, sei: 4, p. 49; aha. in Milch Zti/., 24 {1S9G), No. 42, p. 668). 



Determination of the sugar and the molasses content of molasses feed, C. 

 Mf-LLER (LaniJw. Vers. Stat., 47 {1896), No. 2-3, pp. 249-251). 



Application of the Rontgen rays in the analysis of vegetable substances, F. 

 Ranwez {Assoc. Behje. Chim., 10 {1806), pp. 44-48; ahs. in Analyst, 21 (1896), Sept., 

 p. 233). 



A new shaking machine for laboratories, M. von Recklinghausen (Jier. deut. 

 chcin. (ivs., 29 (1896), Xo. 14, pp. 2372, 2373, fig. 1). — Describes a machine of very simple 

 construction suitable for shaking a number of small bottles or tubes at once. — a. m. 



PETER. 



On a modification in the form of measuring flasks, H. Blitz (Ber. deal. chem. 

 Ges., 29 (1896), No. 13, p. 2082, fig. 1). — The modification consists in making the dasks 

 with- a bulb-like enlargement iu the neck above the graduation mark to facilitate 

 the ndxing of the contents of the flask by shaking after making up to volume. — 

 a, m. peter. 



On a convenient form of measuring flask, W. Wislicenus (Ber. dent. chem. Gcs., 

 29 (1896), Xo. 15, pp. 2442, 2443, fig. 1). — After referring to the measuring Ihisk 

 described by Blitz (see above), the author calls attention to the fact that similar 

 flasks, but with double graduation, have been in use for some time. Such a flask, 

 graduated to 1,000 and 1,100 cc. is figured and its use in making up normal solutions 

 is described. — A. M. peter. 



Report of work at the State laboratory at Antwerp, Belgium, in 1895, I). 

 Crispo (Hap. Trar, Lab. Etat, Anvers, 1895, pp. 16). — Tabulated analyses of fertilizers, 

 feeding stuffs, and foods; results of comparative tests of the citro-meclianical and 

 molybdic methods for phosphoric acid ; and comments on the fertilizer trade. 



BOTANY. 



Relation of the growth of foliage leaves and the chlorophyll 

 function, B. T. MacDougal {Jour. Linn. iSoc. Bot., 31 {IS'JO), No. 

 218., pp. 526-5 16, 2)1. lyfiil. 1). — A brief liistorical sketch is giveu of the 

 investigations on the growth of leaves and their food-forming activity, 

 and the results of some experiments by the author are stated. His 

 experiments were conducted with Armvma triphyJInm, Calla pdlustris, 

 Hibineus rosa-sinensis, Isopyriim hiternatuni, Jnstivia sp., Lilium tigrinmn, 

 Oxalisjforibunda, 0. respertilionis, Fhccnix dactylifera, Trillium erectunij 

 T. crythrocarpum. and Zea mays., and the effect of a lack of carbon 

 dioxid, darkness, diffused light, and the removal of concurrent mem- 

 bers is briefly stated. 



According to the author, the following conclusions are sustained: 



"(1) Material constructed in active chlorophyll areas and stored in special organs 

 may l)e transjiorted to inactive chlorophyll-bearing organs in some plants in light 

 and in darkness, and be used in such manner ns to allow of the perfect development 

 of these organs. 



"(2) The removal of concurrent members in darkness may have no effect, may cause 



