METEOROLOGY WATER. 1011 



in molasses feeds aud oue for denatured sugar mixtures containing linseed 

 meal. 



Application of the gasom^etric method to the exact determination of urea, 

 A. RoNCHESB- {Bui. /SVk'. Chiin. France, 4. ser., 3-.) (1908), Xo. 23, pp. Jt.J.'t- 

 ii.;/).— Noted from another source (E. S, 11., 20, p. 807). 



Wood products, distillates and extracts, P. Dumesny and J. Noyer, trans, 

 by D. Grant {London, 1908, pp. XVI+320, figs. 107).— A translation of a tech- 

 nical treatise on the industrial chemistry of wood and its preservatives. The 

 special subjects treated are the carbonizing or " coaling " of wood, the manu- 

 facture of acetic acid aud secondary products of wood distillation, analysis of 

 raw materials and finished products, the destructive distillation of olive oil 

 residuals, and the manufacture and testing of tan wood extracts and their 

 utilization in modern tanneries. 



Leather industries laboratory book, H. R. Procter {London and Xew York, 

 1908, 2. cd., rcr. and enl., pp. A'A'+'/O'O, pis. 3, figs. J/G). — This is the second edi- 

 tion of a work which " is occupied mainly with the practical details of analytical 

 processes aud makes no attempt to teach either chemical theories or the prin- 

 ciples of leather manufacture." The chemical, microscopical, aud bacteriolog- 

 ical methods described have been tested in the laboratory and include processes 

 used in the examination of tanning material. The work is intended as a supple- 

 ment to the ordinary chemical text-book. 



A new mercury azotometer, C. A. Garcia {Bui. Soc. Chim. France, Jf. ser., 

 3-If {1908), No. 23, pp. 1111-111',, fig. 1; ahs. la Analyst, 34 {1909), No. 395, p. 

 78, fig. 1; Jour. Chcm. &'oc. [London], 96 {1909), No. 555, IT, p. 92).— Au ap- 

 paratus in which the air space is reduced to a minimum with a view to thus in- 

 creasing the accuracy of measurement is described. 



A simple apparatus for the estimation of catalase, G. Koestler {llilchw. 

 Zenthl., 4 {1908), No. 12, pp. 532-535, figs. 3; ahs. in Rev. (Jen. Lait, 7 {1909), 

 No. 9, p. 21'/)- — The apparatus described consists of a graduated tube provided 

 with au agar cork, which is forced upward as gas is formed. 



An apparatus adapted to a number of analytical purposes, M. E. Pozzi- 

 EscoT {Bui. Assoc. Chim. Sucr. et Distill., 26 {1908), No. 4, pp. 267-271, fig.l).— 

 The ai)paratus described is a small flask with accessory devices, which, as 

 explained by the author, is adapted to use in a number of analytical determina- 

 tions, including the determination of carbon dioxid in carbonates, amid, ammo- 

 niacal and nitrous nitrogen, oxygen in water, analysis of persulphates, i)erbo- 

 rates, percarbonates, and peroxids, hydrazin, and copper. 



METEOROLOGY— WATER. 



Wireless telegraphy in the service of modern meteorology, P. Poos {Hansa, 

 45 (1908), No. ii8, pp. 937, 938). — This is a brief account of the use of wireless 

 telegraphy to secure a series of weather observations on a trip on a large ocean 

 liner from Hamburg to New York aud return in August, 1908, and of the prep- 

 aration of daily synoptic weather charts, with suggestions as to the aid a sys- 

 tem of such observations would give in general weather predictions on sea and 

 land. 



Wireless telegraphy in the service of modem meteorology, E. Herrmann 

 (Ilansa, 45 {1908), No. 39, pp. 962-964).— The author questions whether 

 weather reports from ships by means of wireless telegraphy, as suggested by 

 I'olis (see above), will prove of very great value in determining the laws con- 

 trolling the distribution of variation in atmospheric pressure over wide areas, 

 upon which accurate weather forecasting on land and sea depends. 



