224 



BACTERIA IN RELATION TO PLANT DISEASES. 



('87). DAI, Pozzo, D. Das Eiweiss der Kiebitzeier 

 als Nahrboden fiir Mikroorganismen. Med. 

 Jahrb. Jahrg., 1887, pp. 523-529. 



('87). ABBOTT, A. C. An improvement in the method 

 of preparing blood serum for use in bac- 

 teriology. Medical News, 1887, vol. i, p. 

 207. Rev. in Centralb. f. Bakt, n Bd., 1887, 

 pp. 424-425. 



('87). RASKIN, M. Zur Zucbtung .der pathogenen 

 Mdkroorgani'smen auf aus Milch bereiteten 

 festen und durchsichtigen Nahrboden, St. 

 Petersburger med. Wochenschr, xn Jahrg., 

 1887, pp. 357-360. 



('88). VON FREUDENREICH, E. Zur Berettung des 

 Agar-Agar. Centralb. f. Bakt., 1888, in 

 Bd., pp. 797-798. 



Recommends filtering nutrient agar in the autoclave at 

 about I ioC. Time required 30 to 60 minutes. 



('88). VAN PUTEREN. Ueber die Herstellung von 

 festen Nahrboden aus Milch zu Mikro- 

 organismen Kulturen. (Russian.) 1888. 

 ('88). HUEPPE, FERDINAND. Ueber die Verwendung 

 von Eiern zu Kulturzwecken. Centralb. f. 

 Bakt., 1888, iv Bd., pp. 80-81. 



Cultures are made in the uncooked eggs after shaking 

 and proper surface sterilization. 



('88). Roux, E. De la culture sur pomme de terre. 

 Ann. de 1'Inst. Pasteur, T. n, 1888, pp. 

 28-30, 2 figs. 



('89). PETRI, R. J. Ueber den Gehalt der Nahrgela- 

 itine an Salpetersaure. Centralb. f. Bakt., v 

 Bd., 1889, pp. 457-46o. 



Commercial gelatin generally contains nitrates in con- 

 siderable quantities. 



('89). VOIGTLAENDER, FEIJX. Ueber die Diffusion in 

 Agargallerte. Zeitschr. f. Physik. Chemie., 

 Bd. in, 1889, pp. 3i6-335- 



A study of some of the physical properties of agar- 

 The rate of diffusion of many acids and other substances 

 was determined. The conclusions are : 



1. The diffusion in agar jelly from watery solutions is 

 not disturbed by the process of imbibition. 



2. The validity of Pick's law for dilute solutions was 

 amply demonstrated. 



3. The rapidity c f diffusion of a substance in different 

 concentrations of the affar ielly is the same. The diffusion 

 constants observed in the jelly are like those of water or 

 greater or less. 



4. With rise of the temperature the constant does not 

 increase in linear relation, but the amount of the salt 

 which enters in increases. 



('89). REIN, J. J. The industries of Japan; together 

 with an account of its agriculture, -forestry, 

 arts, and commerce ; from travels and re- 

 searches undertaken at the cost of the Prus- 

 sian Government; with 44 illustrations and 

 3 maps. London, Hudder & Stoughton, 27 

 Paternoster Row, 1889, pp. xn, 57O. 2d re- 

 vised German edition, 1905. 



The cartilaginous Florideoe, particularly species and 

 varieties of Gigartinese, CaulacautheEe, Gelide, Sphaero- 

 cocceaj, and Tylocarpea;, are distinguished for their high 

 proportion of pararabin, and furnish, with boiling water 

 algee-jelly. They are gathered in great quantity on all 

 the coasts of the Malay Archipelago and the waters of 

 China and Japan, and are utilized in part direct as food, 

 partly in the preparation of algse-glue, Jap. Fu-nori, or 



tne iviaiay wuiu /i^;u -.-\i^;ii , i. c., vcjgcttijjn-. ^>. uniu*. 



was originally applied to Gigartina (Eucheuma) isifor- 

 mis, G. spinosa, and G. tenax, which is collected near 

 Singapore, for example, in great masses, and shipped to 

 China. The Chinese use them not only for food but make 

 of them Hal-Thao, a transparent glue, with which they 

 stiffen *ilk and other stuffs, and also fill up the interstices 

 of coarse clothes for the manufacture of lanterns. 



('89). PETRI, R. J. Nachtrag zu "Ueber den Gehalt 

 der Nalirgelatdne an Salpetersaure." Cen- 

 tralb. f. Bakt., v Bd., 1889, pp. 679-680. 



('90). KUEHNE, W. Kieselsaure als Nahrboden fiir 

 Organismen. Zeitsohr. f. Biol. Neae Folge, 

 Bd. ix, Der ganzen Reihe, Bd. xxvn, 1890, 

 pp. 172-179. 



('90). TISCHUTKIN, N. Eine vereinfachte Methode 

 der Bereitung von Fleisch-Pepton-Agar. 

 Wratsch., 1890, No. 8, pp. 177-178. Reviewed 

 in Centralb. f. Bakt., Bd. ix, p. 208, 1891. 



The crude agar-agar is first exposed for 15 minutes in 

 acetic-acid water (5 glacial acid, 100 water). 



('91). SCHULTZ, N. K. Zur Frage von der Bereitung 

 einiger Nahrsubstrate. Centralb. f. Bakt., 

 x Bd., 1891, pp. 52-64. 



('91). SLESKIN, P. Die Kieselsaure Gallerte als 

 Nahrsubstrat. Centralb. f. Bakt., Bd. x, 

 1891, pp. 209-213. 



('91). MARPMANN. Mittheilungen aus der Praxis. 

 i, Ersatz fiir Agar; 2, Ersatz fiir Gelatine. 

 Centralb. f. Bakt., x Bd., 1891, pp. 122-124. 



('92). PETRI, R., UND MAASZEN, ALBERT. Ueber die 

 Bereitung von Nahrbouillon fiir bakteriolo- 

 gische Zwecke. Arbeiten aus d. kaiserl. 

 Gesundheitsamte, Bd. vm, No. 2, 1892, pp. 

 3II-3I4. 



('92). LOEW, O. Ueber einen Bacillus, welcher 

 Ameisensaure und Formaldehyd assimiliren 

 kann. Centralb. f. Bakt., xn Bd., 1892, pp. 

 462-465. 



('92). DE LAGERHEIM, G. Macaroni als fester Nahr- 

 boden. Centralb. f. Bakt., xi Bd., 1892, pp. 

 147-148- 



Author states that cultures of chromogenic bacteria on 

 macaroni stand out from the background very distinctly 

 and are very instructive. The whitest macaroni should 

 be selected. It is cut into pieces 4.5 cm. long. These are 

 put into test tubes and covered i cm. over with water and 

 cooked for 15 minutes. The water is then carefully poured 

 off and the media sterilized in streaming steam in the 

 usual way. 



('92). SEILER, F. Influence de la composition de la 

 gelatine nutritive sur le developpement des 

 colonies microbiennes. Schweizerische 

 Wochenschr. f. Chemie u. Pharm., 1892, 

 pp. 261-263. 



('92). SCHUTZ, J. Q. A rapid method of making 

 nutrient agar. Bull. Johns Hopkins Hos- 

 pital,vol. in, July-Augusit, 1892, p. 92. 



A useful and easy method. 



('93). USCHINSKY. Ueber eine eiweissfreie Nahr- 

 losung fur pathogene Bakterien, nebst 

 einigen Bemerkungen fiber Tetanusgift. 

 'Centralb. f. Bakt., Bd. xiv, 1893, No. 10, pp. 

 316-319- 



('93). NASTIUKOFF. Ueber Nahrboden aus Eigelb 

 fur Bakterienkulturen. Wratsch., 1893, No. 

 33 and 34. Rev. in Centralb. f. Bakt., xvn 

 Bd., 1895, pp. 492-493- 



('93). HESSE, W. Ueber den Einfluss der Alkalescenz 

 des Nahrbodens auf das Wachsthum der 

 Bakterien. Zeitschr. f. Hygiene, Bd. xv, 



1893, pp. 183-191- 3 plates. 



('94). FRAENKEL, C. Beitrage zur Kenntniss des 

 Bakterienwachsthums auf eiweissfreien 

 Nahrlosungen. Hyg. Rumlschau, Jahrg. iv, 



1894, pp. 769-776. 



