82 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
New Phosphorescent Bacterium.* * * § — Herr C. Eijkmann describes a 
new phosphorescent bacterium, Photobacterium javanense , common on 
marine fish in the Dutch East Indies. It is most nearly allied to P. 
Pfluegeri, but differs from that species, P. phosphor esc ens, and P. patho- 
genicum in its greater motility and in its adaptation to a higher tem- 
perature. It does not liquefy gelatin, and has a bluish-green light 
with much white. 
“ Mai Nero” of the Vine.f — Dr. B. Pasquale has studied, especially 
in Sicily, the phenomena and causes of this destructive disease, which 
manifests itself in the form of black spots and streaks on the leaves. 
He believes it to be due to the attacks of a parasitic Schizomycete which 
developes chiefly in the tissues rich in protoplasm and in other plastic 
materials, such as the cambium, the medullary rays, the cortical paren- 
chyme, and the soft bast of the axile organs. 
Micrococcus tetragenus concentricus.J — Prof. S. L. Schenk gives 
this name to a new micro-organism which occurred in the faeces of a 
patient suffering from stomachic catarrh. It has numerous character- 
istics, the most notable being the formation of concentric rings in 
gelatin culture. 
Micrococcus pneumoniae crouposae.§ — Dr. G. M. Sternberg calls 
attention to the fact that he was the first to describe the micro-organism 
so intimately associated with pneumonia, and which has received the 
different aliases of Microbe septicemique de la salive (Pasteur), Coccus 
lanceole (Talamon), M. Pasteuri (Sternberg), Pneumococcus (Fraenkel), 
Diplococcus pneumoniae ( Weichselbaum), B. salivarius septicus (Fliigge), 
St. lanceolatus Pasteuri (Gamaleia). The author’s paper was entitled 
“ A fatal form of septicaemia in the rabbit, produced by the subcutaneous 
injection of human saliva.” But, besides substantiating his claim to 
priority, the author has the further object of suggesting a suitable name 
for the micro-organism which, as he points out, is not a diplococcus but 
rather a streptococcus. 
Micrococcus agilis citreus.|| —Dr. K. Menge adds another flagellated 
coccus to the list. This bacterium was found on a gelatin plate, and its 
suspected source of origin was a pea infusion, although it was also found 
in the air of the laboratory. It appears to be about the same size as 
M. agilis t The arrangement of the individual elements is variable and 
presents no specific order. In hanging drop-cultivations the movements 
were seen to be very lively, and the flagellum was easily stainable by 
Loeffler’s method. The flagellum was found to be about six times as 
large as the diameter of the coccus, and was best demonstrated when 15 
drops of 1 per cent. NaHO were added to 16 ccm. of Loeffler’s mordant. 
The micro-organism grows well on agar and gelatin, and aerial colonies 
are of a yellow colour, but their shape does not appear to present any- 
thing specially characteristic. Cultivations were also made in bouillon, 
* Geneesk. Tijdschr. Neederland. -Indie, xxxii. (1892) pp. 109-15. See Bot. 
Centralbl., lii. (1892) p. 10. 
f Malpighia, vi. (1892) pp. 229-34. 
t MT. Embryol. Inst. K. K. Univ. Wien, 1892, pp. 81-91 (3 figs.). 
§ Centralbl. f. Bakteriol. u. Parasitenk., xii. (1892) pp. 53-6. 
|| Tom. cit., pp. 49-52. 
