ZOOLOGY AND BOTANY, MICROSCOPY, ETC, 329 



Schizophyta. 

 Schizomycetes. 



Influence of Bacteria on the Production of Perithecia.* — 

 A. Sartory and H. Roger, working with a species of Asper<jillm, closely 

 related to Aspergillus B. var. ScheeUi (Bainer Sartory), Lave observed 

 the appearance of the Eurotiinn form at the end of ten days, when the 

 conidia and the mycelium (impure culture) are transplanted on to damp 

 straw. The numjjer of perithecia arising were very great, and were of 

 a beautiful yellow colour. Tliey were spherical, and varied in measure- 

 ment from 90-100 /x. in diameter. The thecia, which were spherical, 

 measured 12 fj. in diameter, and contained eight oblong ascospores of 

 from 4 • 5-5 ' 5 /x diameter. 



It was found that it was impossible to provoke the formation of 

 perithecia by growing the fungus upon the media usually employed in 

 mycology, but when the Aspergillus was grown in conjunction with a 

 certain organism belonging to the B. mesentencus group, the Eurotium 

 form was constantly obtained. This observation recalls the fact that 

 MoUiard showed in 1903 that in the case of another ascomycete 

 {Ascobolus furfuraceus) the presence of a bacterium favoured the pro- 

 duction of perithecia. 



Studies in Gas Gangrene : The Bacillus of Malignant (Edema.f 

 M. E. Sacquepee in this memoir gives an extensive description of the 

 Bacillus CEdematis maligni (Vibrion Septique), including its morphology 

 (staining reactions, appearance of the capsule, motility, cilia, spores, etc.), 

 its cultural reactions and its biological and pathological characteristics. 

 A great deal of the work covers old ground, but on account of the 

 confusiou which has existed regarding the separation of this bacillus 

 from other pathogenic and non-pathogenic gas-producing anaerobes, this 

 paper must be regarded as a welcome addition to the already extensive 

 literature on this important subject. 



Latent Bacterial Infection in Cicatrized Wounds. | — P. Lecene 

 and A. Fronin have examined twenty-four cases of healed war wounds, 

 from which the projectile had not been removed, with the view of 

 investigating the question of latent infection. In three cases the pro- 

 jectile, which was extracted and placed immediately in nutritive broth, 

 remained sterile. In sixteen cases the broth tubes gave more or less 

 abundant culture of various micro-organisms, such as staphylococci, 

 streptococci and various unidentified bacilli : the majority of the micro- 

 organisms were facultative anaerobes. In the remaining four cases the 

 projectile and its containing fibrous capsule were removed together. 

 Cultures from the projectile remained sterile, but those taken from the 

 internal layer of the fibrous envelope gave growths of cocci and bacilli. 



* C.R. Soc. Biol. Paris, Ixxix. (1916) pp. 174-5. 



t Ana. Inst. Pasteur, xxx. (1916) pp. 76-108 (1 pi.). 



+ 



Comptes Rendus, clxii. (1916) pp. 722-4. 



