208 



BACTERIA IN RELATION TO PLANT DISEASES. 



('94). LiDFORSS^ B. Ueber die Wirkungssphare der 

 Glycose u. Gerbstoff-Reagenten. Sep. Abdr. 

 aus Lunds Univ. Arsskr. T. xxviii^ 14 pp. 

 Rev. Bot. Centralb., 1894. Bd. lix_, p. 2S1. 



Aiithor saj'S tannins give most of the protein reactions, 

 and may thus lead investigators to many wrong couclu- 

 sions. The following test is given for grape sugar iu 

 plant tissues ; The parts to be tested are soaked for 

 some time in an alcoholic copper solution, and then 

 brought to a boil over a water bath. This causes a pre- 

 cipitate of copper oxide (oxydul) iu all of the cells which 

 contained grape sugar. The alcoholic copper solution is 

 made as follows : Add some acetic acid and glycerin to 

 an alcoholic solution of copper acetate This" is then 

 mixed with an equal volume of alcoholic solution of 

 caustic soda (Natronlosung). Tliis mixture is as sensi- 

 tive as Fehling's soluti<:>u, and is not reduced by various 

 substances vi-hich reduce Fehling. A great number of 

 soluble reducing substances are removed by the alcohol 

 from the plant cells, while the sugar remains behind. 



Barfoed's reagent consists of acetate of copper dis- 

 solved in water and made acid by acetic acid. It is useful 

 for detection of sugar in some cases where Fehling's 

 solution is worthless, i. e., in the presence of Phlorogiu- 

 ciu, Aesculin, Quercit, which reduce the latter. Tlie for- 

 mer, on the contrary, is reduced b}' H^'drochi^on and 

 Resorcin, 



('95). Cross and Bevak. Cellulose. An outline of 

 the chemistry of the structural elements of 

 plants, with reference to their natural his- 

 tory and industrial uses. pp. vi^ 320, with 

 14 plates. lyondon, Longmans, Green & Co., 



1895. 



('95), Meyer, Arthur. Untersuchungen iiber die 

 Starkekorner. 8vo. pp. xvi, 31S, with g 

 lithographic plates and 99 text figures. 

 Jena, Giistav Fischer, 1895. 



('95). VON LiPPMAN, E. O. Die Chemie der Zuck- 



erarten. Svo. Second edition, pp. xxvi, 



1,174. Braunschweig, Fr. A'ieweg u. Sohn, 



1895. 



The third edition appeared in 1904 in two large vol- 



UTnes, pp. xxsviii, 2003. Indispensable, 



('<5,). BeiirEns, H. Aiileitung zur mikrochemischen 

 Analyse der wichtigsten organischen Ver- 

 bindungen. i Hft. Anthracenegruppe, 

 Phenole, Chinone, Ketone, Aldehyde, pp. 

 viii, 64, with 49 figures, 1895. 2 lift. Die 

 wichtigsten Faserstoffe. pp. viii, 108, with 

 18 figures in text and three colored plates, 

 1896. 3 Hft. Aromatische Amine, pp. vii, 

 135, with 77 figures, 1896. 4 Hft. Karba- 

 mide, aliphatische Karbonsiiuren, Aroma- 

 tische Karbonsauren. Hamburg and Leipsic, 

 Leopold Voss, 1897. 



Very useful. 



('96). Beyerinck, M. W. Ivulturversuche mit 

 Amoben auf festem Substrate. Centralb. f. 

 Bakt., I Abt., Bd. xix, pp. 257-267, 1896. 



('96). ComEy, Arthur M. A Dictionary of Chem- 

 ical Solubilities. Inorganic, pp. xx, 515. 

 Macmillan & Co., London and New York, 

 1896. 



('96). Merck's Index. An encyclopaedia for the 

 physician and the pharmacist; stating the 

 names and synonyms; source or origin; 

 chemical nature and formulas; physical 

 form, appearance, and properties; melting 

 and boiling points; solubilities; gravities 

 and percentage strengths; physiological ef- 

 fects; therapeutic u.ses; modes of adminis- 

 tration and application; regular and maxi- 



mum dosage; incompatibles ; antidotes; 

 special cautions; hints on keeping and 

 handling; methods of testing; market val- 

 ues, etc., of the chemicals and drugs used in 

 medicine, in chemistry, and in the arts. 2d 

 ed. Merck cK: Co., New York, 1896. 



Very useful. 



(96). I^EEEVRE, LiiON. Traite des matieres color- 

 antes organiques artificielles, de leur prepa- 

 ration industrielle et de leur applications, 

 2 vols. 8vo. pp. XX, 1,648, with 31 text 

 figures and 261 dyed or printed samples of 

 silk, wool, cotton, paper, and leather, pre- 

 pared under the direction of the author 

 especially for this edition. Paris, G. Mas- 

 son, i8g6. 



('97). Davenport, C. B. Experimental morphology 

 Part I. Effect of chemical and physical 

 agents upon protoplasm, 1897. The Mac- 

 millan Co., New York. pp. xiv, 280, 74 

 figs. 



('97). MielER, AVaeter. Scientific Names of Latin 

 and Greek Derivation. Proc. Calif. Acad. 

 Sci. Zoology, Third Ser. Vol. i. No. 3, 

 pp. 1 15-143, 1897. 



('97). Schneider, A., and Altschul, Julius. Rea- 

 gents and reactions known by the names of 

 their authors. Milwaukee, Wis., 1897. 

 Pharm. Review Pub. Co. 



This book was first written b3- A. Schneider. The Ger- 

 man edition was revised and enlarged by Julius Altschul, 

 It was translated into E;nglisli by Richard Fischer. 



(97). Bausch, Edward. Manipulation of the micro- 

 scope. BauS'Ch and Lomb Optical Co, 

 Rochester, N. Y. 3d ed. 200 pp. 1897. 



('97-04). Peeefer, WiehELM. Pflanzenphysiologie. 

 Ein Handbuch der Lehre vom Stoffwediscl 

 und Kraftwechsel in der Pflanze. Bd. j 

 Stoffwechsel. pp. x, 620, mit 70 Holzschnit- 

 ten. Leipzig, 1897. Bd. 11, Kraftwechsel. 



I Hiilfte, 1901, pp. 353, mit 31 Holzschnitten, 



II Halfte, 1904, pp, XI, 353-986, mit 60 Holz- 

 schnitten, Verlag von Wilhelm Engelmann, 

 English translation by Alfred J. Ewart, 

 Oxford, Clarendon Press. Vol, i, igoo, 

 Vol. 11 (Part i), 1903. Vol. Ill in prepara- 

 tion. 



('98). BehrEns, WilhElm. Tabellen zum Gebrauch 

 bei mikroscopischen Arbciten. Braun- 

 schweig, Harald Bruhn. pp. vir, 237. 3d 

 ed., revised, i8g8. 

 Kxtremelj' useful. 



CgS). voN BuNGE, GusTAV. Lehrbuch der physi- 

 ologischen und pathologischen Chemie. Li 

 neunundirwanzig Vorlesungen fiir Aerzte 

 und Studierende. 4 vermehrte und verbes- 

 serte Aufl. Leipzig, Verlag von F. C. W. 

 Vogel, i8g8. pp. iv, 510. 



English translation, from 4th German ed. bj' Starling, 

 London, 1902, 



('98). SceiroedEr von der Kolk, J. L. C. Kurzc 

 Anlcitung zur mikroscopischen Krystal- 

 bestimmung. pp. 60, with text figures. 

 Wiesbaden, C. W. Kreidel's Verlag, 1898. 



