THYSICAL, CHEMICAL, ZOOLOGICAL, AND liOTANICAL WORKS. 



207 



(84). De Vries, Hugo. Over eene methode om in 

 planten-sappen gebonden zuren te bcfolen. 

 Maandblad voor Natuurwetenschappeii, No. 

 0, 1884. Rev. in Botan. Centralb , Bd. xxiv, 

 p. 249. 



This author gives a method of estimating the <|iiaiitity 

 of acid 111 plauts when uot free, i. e. , wlieu united with 

 bases. 



(84). M01.1,, J. W. Eene nicnwe mikroehemische 

 looizuui-reactie. Maandblad \'oor Natuiir- 

 wetenschappen, 1884. Rev. in Bot. Centralb. 

 Bd. XXIV, p. 250. 



Best metliud (micro-chemical) of detectii]g tannin in 

 cells. He Su;iks small pieces of tissue in saturated solu- 

 tion (7 per cent) acetate of cojiper .3-io clays, and longer 

 will not injure. Then they are sectioned .and treated for 

 a /cir minutes with a drop of o 5 per cent sol. iron ace- 

 tate. Too long an e.xpf.isure browns the cell walls. 'The 

 sections are then washed in water, transfelTed to alcohol 

 and finally mounted in glycerine or glycerine jelly. If 

 the test cannot be made at once, the specimens wilT not 

 be injured l)y preserving in alcohol, after the soaking in 

 acetate of copper. The tanuin-bearing cells become green 

 or blue. 



(,'85). HanausEk, T. p., and Pammer, L. Ueber 

 die Loslichkcitsverhaltnisse des Kautschuks. 

 Zeitschrift des allg.- osterr. Apotheker- 

 Verein.s, 1885, No. 31, pp. 4S6-488, with a 

 table. Rev. in Bot. Centralb., Bd. xxv, 1&86, 

 p. 308. 



Note on bust solvents for niblier. 



( '85 ) . Strasrukcer, Ed. Zur mikroskopischen 

 Technik. Bot- Centradb, Bd. xxiv, 1885, 

 pp. 150-T57 



According- to .SLraslmrger, Isabel's yc-Unu' pencils are 

 the best for writing on glass or porcelain. To find par- 

 ticular places in a preparation, he makes rings on the 

 stnL;e of the microscope to each side of the ojiening, and, 

 when the desired field is in \iew, corresponding lines on 

 the slide. The best method oi making eau de Javelle is 

 said to be the following : 



[a) Take ju parts of 25 per cent chloride of lime (Chlor- 

 kalkes), stir np in mi.i parts of water, and let stand for a 

 time 



{/>) Dissolve 15 parts of jinre potash in 100 parts of 

 water. 



Aild b to <', and, after one to sevei^al days, filter and 

 nse the hUrate. l( lime still remains in the fluid, add a 

 few drops of potash solution and lilter out precipitate. 



('85). Lehiiann, O. Physikalische Technik. Spe- 

 'cielle Anleitung- zur Selbstanfertiguiig phy- 

 sikalischer Apparate. pp. xii^ 416, with 882 

 wood cuts and 17 tables. Leipsic, Wm. 

 Engelmann, 1S85. 



('85). Noll, F. Eau de Javelle, ein Aufliellungs- 

 und Losungsniittel fur Plasma. Botan. 

 Central!)., Bd. xxi, 1885, pp. 377-380. 



Author tell'-' how to make an<.l how to use can de Javelle. 

 Alcoholic material is best suited for treatment. Fresh 

 protoplasm does not dissolve completely, but leaves 

 detritus and granules. Strasburger, Jbid , Band xxi\-, 

 p. IS7, says this is not eau de Javelle. 



('8s). Kraus^ C. Ueber aniphoterc Reaction der 



Pflanzen-Saftc. Botan. Centralb., Bd. xxiv, 



1885, p. 2R7- 



A. Meyer sunimari/.es some of Kraus' lesults obtained 



from the pith parenchyma of twenty plants. Kraus 



claims that neutral litmus A\-ould not answer. He used 



red and blue litmus Little pieces were thrown into 



the sap and left a long time. He got both reactions. 



('86). Peeffer, W. Ueber Atifnahme von Anilin- 

 farben in Icbende Zellen. LTntersucbung-en 

 a. d. Bot. In.st. zu Tnebingcn, Leipzig, 1886, 

 Bd. II, licft 2, pp. 170-329. 



('86). Bachmann, E. Spcktroscopi-sche Unter- 

 snchugen von Pilzfarbstoffen. Plauen, 18S6. 

 Not seen. 



('86). Shenstone, W. A. The methods of glass 

 blowing for the use of physical and chemical 

 students, pp. x, 86, with figures. i2mo. 

 Rivingston's, Waterloo Place, London, 1886. 



('89). BehrEns, W., KossEb, A., uND Schieffer- 

 decker, P. Das Mikroskop und die Metho- 

 den der mikroskopischen Untersuchungen. 

 pp. VIII, 315, with 193 wood cuts. Braun- 

 schweig, Harald Bruhn, 1S89. 



('90). Curtmam, Charles O. Chemical reagents and 

 the spectroscope. i2mo. pp. 256, -with 12 

 plates. John L. Boland Book and Stationery 

 Co., St. Louis, 1890. 



a useful little book. 



('90). Nickel, Emil. Die Farbenreactionen der 

 Kohlenstoffverbindungen. 2d ed. pp. viii, 

 134. Berlin, Verlag von Hermann Peters, 

 1890. 



Cpi-Vu). OsTWALD, WiLHELM. Lehrbuch der allge- 

 mcinen Chemie. Zweite g.anzlich umgear- 

 beitete Auflage. Leipzig, 1891-1892. 2 Bd. 



The fourth book of the second edition was translated 

 into English bj^ M. M. Pattison Muir, under the title 

 " Solutions." London, 1891, pp. xiii, 316, S vo. 



('92). Trimble, LIenry. The tannins, pp. i68. J. 

 B. Lippincott Co., Philadelphia, 1892. 



('92). ZiMJiERMANN, A. Die botanische Mikrotech- 

 nik. Ein Ilandbuch der Mikroskopischen 

 Prapanations- Reaktions- und Tinktions- 

 methoden. Mit 63 Abbild. im Text. Tubin- 

 gen, 1S92. pp. X, 278. English translation by 

 James Ellis Ilinnphrey. I-fenry Llolt & Co., 

 New York, 1893. 



('93). LEa, a. Sheridan. The chemical basis of the 

 animal body. New York, Macmillan & Co , 

 1893. pp. 288. Forms Part v of 6th ed. of 

 Foster's larger Physiology. 



('93). Bender, Adolf, und Erd.mann, Hugo. Chem- 

 ische Praparatenkunde. 2 vols. Bd. I. 

 Anleitung zur Darstellung anorganischer 

 Praparate, von Bender, pp. viii, 530, with 

 102 figures, 1893. Bd. 11. Anleitung zur 

 Darstellung org-anischer Priiparate, von Erd- 

 man. pp. xii, 610, with 41 figures. Stutt- 

 gart, Ferdinand Enke, 1804. 



('03-'05). Schmidt, Ernst. Ausfuhrliches Lehrbuch 

 der Pharmaceutischen Chemie. Braunsch- 

 weig, Fr. A'^icweg & Sohn. 3d ed. Inorg., 

 1893. Organic, 1895. pp. 648, VI. 4th ed., 

 1901. pp. XXXIII, 1,944. 



('94). Behrens, H. a manual of microchemical 

 analj'sis. With an introductory chapter by 

 John W. Judd. With 87 illustrations, pp. 

 xxv, 246. London and New York, Mac- 

 millan c^ Co , 1894. 



('94). I.vAndolt und Boernstein. Physikalisch-chem- 

 ische Tabellen. 2d ed, pp. xi, 563. Berlin, 

 Julius Springer, 1S94. 



('94). The National Dispensatory, sth ed. 1894. 

 Lea Brothers & Co., Philadelphia and New 

 York. pp. viii, 1903. 



('04). ScHULZ, Cr., AND Julius, P. Systematic sur- 

 vey of the organic colouring matters. Trans- 

 lated from the German and edited wdth ex- 

 tensive additions by Arthur G. Green, pp. 

 viii, 205. I^ondon and New York, Mac- 

 millan el- Co , 1S94. 



\'ery useful. 



