224 



BACTERIA IN RELATION TO PLANT DISEASES. 



('87). Dal PozzO; D. Das Eiweiss der Kiebitzeier 

 als Njihrboden fur Mikroorg'anismen. Med. 

 Jahrl). Jahrg., 1887, pp. 523-5^9: 



('87J. AiiuuTT, A. C. An improvement in itlie method 

 of preparin.a: blood serum for use in bac- 

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

 207. Rev. in Centralb. f, Bakt., 11 Bd., 18S7, 

 pp. 424-425- 



('87). Raskin, M. Zur Zuchtung der pathogenen 

 Mikroorgani'smen auf aus Milch bereiteten 

 festen und durchsiclitigeu Nahrboden, St. 

 Petersburgcr nicd AVochenschr, xii Jahrg., 

 1S87, pp. 357-360. 



('88). VON Feeudenreich, E. Zur Bereitung des 

 Agar-Agar. Centralb. f. Bakt., 1888", iii 

 Bd., pp. 797-79S. 



Recomniends filtering nutrient agar in the autoclave at 

 about I lo'-'C. Time required 30 to 60 minutes. 



('S8). VAN PuTEre:n. Ueber die Herstellung von 

 fes'ten Nahrboden ans Milch zu Mikro- 

 organismen Kulturen. (Russian.) 1888. 



('88). HueppE. Ferdinand. Ueber die A^erwendung 

 von Eiern zu Kulturzwecken. Centralb. f. 

 Bakt., 18.S8, jv Bd., pp. S0-81. 



Cultures are made in the uncooked eg-gs after shaking 

 and proper surfact- sterilization, 



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

 Ann. de I'lnst. Pasteur, T. 11, 1888, pp. 

 28-30, 2 figs. 

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

 ■tine an Salpetersaure. Centralb. f. Bakt., v 

 Bd., 1889, pp. 457-460. 

 Commercial gelatin generally contains nitrates in con- 

 siderable quantities. 



('89). VoiGTLAENDER, Feijx. Ueber die Diffusion in 



Agargallerte. Zeitschr. f. Physik. Cheniie.. 



Bd. Ill, 1SS9, pp. 316-335- 



A study of some of the physical properties of agar- 



The rateof 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 cf diffusion of a substance iu different 

 concentrations of the agar ielly is the same. The diffusion 

 constants observed iu 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. 



('S<,). 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 tlic cost of the Prus- 

 ■sian Government; with 44 illustrations and 

 3 maps. London, Pluddcr & Stoughton, 27 

 Paternoster Row, 18S9, pp. xii, 570. 2d re- 

 vised German edition, 1905. 



The cartilaginous Floridece, particularly species aud 

 varieties of Gigartinete, Caulacanthete, Gelide, Sphtero- 

 cocceic, and TylocarpCLc, are distinguished for their higli 

 proportion of pararabin, and furnish, with boiling water 

 algse-jelly. They are gathered iu great quantity on all 

 the coasts of the Malay Archipelago and the waters of 

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

 partly in the preparation of alg;i--glue, Jap. Hu-nori, or 

 algii.'-jelly, Jap. Kantcu. In trade these articles, l:)oth raw 

 and dried, and when further prepared, are designated by 

 the Malay word Agar-Agar, i. e., \egetable. 'J'his name 

 was originally applied to Gigarliua (Eucheuma) isifor- 

 mis, G. spinosa, aud G. Lenax, which is collected near 

 Singapore, for example, iu great mas=:es, and shipped to 

 China. The Chinese use them not nnlyfor food but make 

 of them Hai-Thao, a trausjiareut glue, with which tliey 

 stiffen silk and other stulfs, and .also (ill up the interstices 

 of coarse clothes foi Lhe mauiifaeUire of lanterns. 



C89). Petri, R. J. Nachtrag zu **Ueber den Gehalt 

 der Nahrgelatine an Salpetersaure." Cen- 

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



C90). KuEiTNE, W. Kieselsaure als Nahrboden fur 

 Organisnien. Zeitschr. f. Biol. Neue Folge, 

 Bd. ix^ Der ganzen Reihe, Bd. xxvii, 1890, 

 pp. 172-179. 



(■90). TiscHUTKiN, N. Eine vereinfachite Methode 



der Bereitung von Fleisch-Pepton-Agar. 



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



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



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



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



(■91 

 ('91 

 ('91 

 ('92 



(•92 

 ('92 



SciiuETZj N. K. Zur Frage von der Bereitung 



ciniger Nahrsubstrate. Centralb. f. Bakt., 



X Bd., i8gi, pp. 52-64. 

 SlEskin^ p. Die Kieselsaiire Gallerte als 



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



1891, pp. 209-213. 

 IMarpmann. Mittheilungen aus der Praxis. 



I, Ersatz fur Agar; 2, Ersatz fiir Gelatine. 



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

 ). Petri, R., und MaaszEn, Albert. Ueber die 



Bereitung von NahrbouiUon fiir bakteriolo- 



gische Zwecke. Arbeiten aus d. kaiserl. 



Gcsundheitsamte, Bd. viii. No. 2, 1892, pp. 



311-314- 

 ). LoEw, O. Ueber einen Bacillus, welcber 



Ameisensiiure und Forraaldehyd assimiliren 



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



462-465. 

 ). DE LagerhEiaf, G. Macaroni als fester Nabr- 



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



147-148. 



Aifthor states that cultures of chromogeiiic bacteria on 

 macaroni stand out from the l)ackgrouud very distinctly 

 and are vei*y instructive. The whitest macaroui 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 miuiites. The water is then carefully poured 

 off aud the media sterilized in streaming steam iu the 

 usual w-a\-. 



(.'92). SeieERj p. Influence de la composition de la 

 gelatine nutritive sur le developpement des 

 colonies niicrobienncs. Scbweizeriscbc 



AX'ocbenschr. f. Chemie u. Pharm , 1892, 

 pp. 261-263. 



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

 nutrient agajr. Bull. Johns Hopkins Hos- 

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

 A useful and easy method. 



('93)- UsCHiNSKY. Ueber eine ciweissfreie Nahr- 



lijsung fiir pathogene Bakterien, nebst 



einigen Bcmerkungen fiber Tetanusgift. 



■Centralb. f. Bakt., Bd. xiv, 1893, No. 10," pp. 



316-319. 

 ('93). Nastiukoff. Ueber Niibrbodcn aus Eigelb 



fiir Bakterienkulturcn. Wratscb., 1893, No. 



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



T'.rl . 1S95, pp. 402-403. 

 ('93). HessK, W. Uelier den Einlluss der .Mkalescenz 



des Nalirbodcns auf das W'acbstliuni tier 



Bakterien. Zeitscbr. f. H>-gieue, Bd. x\', 



1893, pp. 183-191. 3 plales 

 ( '94 1 Fk.vEnkEE, C. Beitriige zur Kenntniss des 



I 'aktcrienwacbstbums auf (.-iweissfreien 



Nalirlosungen. TTvg. Kundscbau, Jahrg. i\', 



i8(i4, pp. 769-77(1. 



