1922] HELLER—ANAEROBIC BACTERIA qd: 
described by the Medical Research Committee (3) under the name 
of Metchnikoff’s type A. These subfamilies are united into the 
following family: 
Clostridiaceae.—Eubacteriales that are rodlike, not spiral, that 
will not grow within 7mm. of the surface of a shaft of clear tissue- 
free agar medium contained in a tube 12 mm. or more in diameter, 
incubated in air, in which they are able to grow in the depths. They 
may or may not possess peritrichial flagella; they may or may not 
form endospores. Most members of the group are characterized by 
their energetic catalytic action on proteins or on carbohydrates or 
on both of these types of substances. 
UNIVERSITY OF CALIFORNIA MEDICAL SCHOOL 
SAN Francisco, CAL. 
LITERATURE CITED 
1. AscHorr, L. Zur Frage der Aetiologie ae Prophylaxe der Gasédeme. 
Dontuchs Med. Wchnschr. 421: 469, 512. 
- COMMITTEE ON CHARACTERIZATION AND poe OF BACTERIAL 
Types. The families and genera of the bacteria. Preliminary report, 
Jour. Bacteriol. 2: 505. 1917; final report, ibid. 5: 191. 1920 
- Reports of CommirreeE upoN ANAEROBIC BACTERIA AND erections. 
Med. Research Com. Report no. 39. London. 1919 
- Conran, H., and BIELING, R., Zur Aetiologie und Pathogenese des 
Gasbrandes. Miinch. Med. Wchnschr. 63:1 33-178; 1023-1068; 1561-1608. 
rg16. 
Nv 
w 
> 
vate Gasbrand und seine Ursachen. Berliner Klin. Wchnschr. 
ch 
54° 449. 
6. F sean ee, Uber Gasphlegmone, Schaumorgane, und deren 
ev Selth Zeitschr. Hyg. 40:73. 1902. 
Tber Gasgangriin. Miinch. Med. Wchnschr. 61732217. 1914. 
7. 
8. | Kridachon iiber Gasgangrin. ibid. 63':476. 1916. 
9. , Uber malignes Oedem. Deutsche Med. Wchnschr. 42?:1405. 
1916, 
Io. , Uber Gasbrand. ibid. 42721533: 1916. 
11. —, Wundinfektionen durch pathogene Anaerobier. Beih. Jahrb. 
Hamb. Staatskrankenanstalten. 1918 (p. 17 
12. FurtH, Beitrag zur Kenntnis der Gaarandesegss. Miinch. Med. 
Wchnschr. 63:1169. 1916. 
13. GAEHTGENS, W., Vergleichende Untersuchungen iiber die Erreger des 
Gasbrandes. Centralbl. Bakteriol. 80. 166. 1917-1918. 
- GHon, A., Gasbrand. Wiener Klin. Wchnschr. 30. 390. 1017. 
al 
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