CHANGES DUE TO ENVIRONMENT; CULTURE-MEDIA. 



('97). Peckham, Arii.:r,AiDE Ward.. Tlic influence of 

 environnicnl npon the biological processes 

 of tlie various members of the colon group 

 of bacilli. Jour, of Exper. Medicine, 1897, 

 Sept., i>p. 54i)-5oi. 



('07). AuEKi'..\cn. W'lLiiEtM. Ursache tier Hem- 

 niung (ler Gelatine-Verfliissigung durch 

 Bacterien durch Zuckerzusatz. Arch. f. 

 Hygiene, Bd. xxxi, 1897, pp. ,3ii-,3i8. 



('yS). FiCKEK, i\[ARTiN. Ueber Bebensdauer und 

 i'\bsterben \'on paithogenen Keimen. (Ilabili- 

 tationsschrift.") Bcipzig, Veit & Comp, 

 1808. Rev. in Centralb f. Bakt., xxvii Bd., 

 igoo, p. 685. 

 Soils of jjlass used for holding cnUiirtr media have a 

 distinct influence ou ceitain bacteri.i by reason of sub- 

 stances dissolved out of it, 



('08). RuziCKA, SvANiSLAv. Expcrinicntellc Studien 

 fiber die Variabilitat wichtiger Cliaraktere 

 des B. pyocyaneus und des B. iluorcscens 

 liquefaciens. Centralb. f. Bakt., xxiv Bd , 



1898, pp. 11-T7. 



{'08). NiEDERKORN, Erminio. Vergleicbcude Unter- 

 suchung fiber die versohiedenen Varietaten 

 des Bacillus pyocyaneus uml des Bacillus 

 fluorcsccns liquefaciens. (Inaug. Diss.). 

 Freiburg, Switzerland, 1898. Rev. in Cen- 

 tralb. f. Bakt., XXVII Bd , 1900, pp. 749-750 



('98). London. E. S. Le microbionictre et son appli- 

 cation a I'eiude des phenomcnes d'inanition 

 chez les ibacleries. Arch, des sci. biol. pub- 

 liees par I'linst. imp. de med. exper. a St. 

 Petcrsliurg, T. vi, 1898, pp. 71-80. 

 The bacteria experimented on endured starv;ition only 

 49 to .SS da}'S. 



('99). LIeeestroEm, F. E. Zur Kenntnis der Einwir- 

 kung kleiner Glukosemengcn auf die Vital- 

 itat der Balsterien. Centralb. f. Bakt., xxv 

 Bd., 1891), pp. 170-1S0 and 217-22,^ 



PCveu small tjuantities of grape sugar ])roved harmful 

 in case of acid-f(jrming bacteria 



('99). MadsEn, Tit, Eiuige Bemerkungcn zu dem 

 Aufsatz von P. E. Hellstrijm zur Kenntnis 

 der Einwirkung kleiner Glukoscmengen auf 

 die vitalitat der Bakterien. Centralb. f. 

 Bakt, xxv Bd., 1899, pp. 712-713. 



{'99). ToiiASCzEwSKi, Egon. LTeber das Wachsttim 

 der TuberkelbaciUen auf kartoffelhaltigen 

 Nahrboden. Zeitschr. f. Llyg. Bd. xxxii, 



1899, Heft 2, p. 247. 



("00). KOHLERUGCE. See xlve 



Coo). Smith, TiiEoe.ved. Variation among path- 

 ogenic bacteria. Jour. Bost. Soc. Med. Sci , 

 vol. IV, No. 5, 1900, pp. 95-109. 



(00). Emmerich, Rudolf, and Saida. Ueber die 

 morpliologisclien Veriinderungen der Milz- 

 brandliacillen bei ihrer Anfl(isung durch 

 Pyocyanase. Centralb. f. Bakt., xxvii Bd., 



1900, pp. 776-787, wiith I colored plate. 

 ('00). Krause, Paiti,. Beitriige zur Ivenntnis des 



Bacdlus pyocyaneus. Central!), f. Bakt., 

 xxvii Bd,, 1900, pp. 769-775. 

 Considers efl^ect of electricity (Tesla stream); pigment 

 formation when in symbiosis with streptococci ; beha- 

 vior in hydrogen, carbon dioxide, illuminating gas, hy- 

 drogen sulphi<l ; in vacuo ; nature of the pigments, 



(V)ol, Smith, Til EoirM.D. Die Bedeutung von Varie- 

 tiiten Iiei palliogenen Bakterien. Centralb. 

 f. Bakt., XXVII Bd , 1900, pp. 6,76-677. 



(.00) 

 Coo) 

 Coi). 

 (■02). 

 ( '02 ) . 

 ('04). 



Matzuschita, Teisi. Ueber die Verander- 

 lichkeit der Eigenschaft des Bacillus aii- 

 thracis. Gelatine zu verfliissigen. Cenilralb. 

 f. Bakt., xxviii Bd., 1900, pp. 303-304. 



Matzuschita, Teisi. Die Einwirkun,g des 

 Kochsalz,gebaltes des Nahrbodens auf die 

 Wuchsform der Mikroorganismen. Zeits. f. 

 Hyg , 1900, Bd. xxxv, p. 495. 



RosENFEED, A. Ueber die Involutionsformen 

 einiger pestahnlicher Bakterien auf Koch- 

 salzagar. Centralb. f. Bakt., I Abt., Bd. 

 XXX, 1901, pp. 641-653. 



Smith, Theobald. The relation between 

 bovine and human tuberculosis. The Medi- 

 cal News, New York, vol. lxxx, Feb. 22, 

 1902, pp. 342-346. Also a separate, pp. 14. 



LEpouTrE, L. Reoherches sur la transforma- 

 tion experimentale rle bacteries banales en 

 races parasites des plantes. Annates de I'inst. 

 Pasteur, T. xvi, 1902, pp. 304-312. 



MaassEn, Albert Die teratologischen 

 VVuchsformen (Involutionsformen) der 

 Bakterien und ihre Bedeutung als dia.gnos- 

 tisches Llilfsmiltcl. Arbeiten a. d. Kaiser- 

 lichen Gesundheitsamte, Berlin, 1904, Bd. 

 XXI, ITeft 3, pp. 385-400, pi. X to XV. 



XVI. Culture-Media. 



('59). PayEn. Sur la gelose et les nids de salangane. 

 C. R. des se. de I'Acad. des sci, Paris, T. 

 XLix, 17 Oct., 1S59, pp. 521-530. 



According to Payeu, agar-agar [las the following aver- 

 age comjinsition : Carbon, 4^.77(1; ll^'d^og-en, 5.775; ox>'gen, 

 5'- lis; total, 100.000. 



('.S2). NaECELi, C. V. Unlersuchungen ueber Niedcre 



Pilze. a. d. Ptlanzenpliys. Inst. i. Muenchen. 



18,82, pp. 1-285. 

 ('861). Gl9LLEBEAU, A., ET DE FbvEUUEKREICH, Ed. 



Preparation des gelees a base d'agar-agar. 



Archiv. des sci. phys. et nat., 3e Periode, T. 



-XV, Geneve 1886, pp. 466-468. 

 This author describes a method of making agar witli- 

 oiit filtering. Cook for a (juarter of an hour a water 

 solution of agar {2 per cent), salt 0.5 per cent, and pep- 

 tone I ];>er cent. This is alkaline; neutralize. Add an 

 eipial tjuantity of bouillon ]>reparcd the dav before. 

 Tills bouillon contains "-alt and pejjtoue in the same pro- 

 I'ortion (I kilo, of meat for 2 litres of waterl. Cook in 

 tlie autoclave for two hours at a temperatuoe of 120-' to 

 125*-' C. Do not pass 130'^, a-, agar cliaii,ges color. Remove 

 and let stand. After 4 to 5 hours one" has in the upper 

 part of the flask a limpid liquid with all impurities at 

 thebottoiTi. During this time the temperature must be 

 kejjt above 42'='. Decant and sterilize at 110'-' C. 



('86). MiijuEE, P. "De la culture des bacteries" .in 

 Septieme Memoire sur les organismes micro- 

 scopique de I'air et dcx eaux. Annuaire de 

 I'observ. a Monlsouris pour 1885. See espe- 

 cially pp. 569-570. 



This deals with us^ of Fucus crispus as basis lor a solid 

 culture-medium. 



('87). ScHOTTELius, j\I Einige Neuerungen an bac- 

 teriologischen Apparaten. 2 Vollstjindig 

 klarer Agar-Nahrboden. Centralb, f, Bakt., 

 1887, II Bd., pp. loo-ioi. 

 Agar is soaked about five minutes in 2 per cent hydro- 

 chloric acid and then washed in frequent changes of 

 water. Five to ten per cent of this agar is then macerated 

 over night in bouillon at room temperature ; cooked ; 

 Iieptone and salt added ; neutralized with carbonate of 

 soda or potash ; again cooked, and finally passed through 

 filter paper. 



