Chemistry of vegetable physiology and agriculture
Journal of the Chemical Society Abstracts
Epidemic or Bacillary Dysentery. R'. H. FIRTH (Tmns. Pathol. Soc. London, 1904,55, 340-375).-Two types of bacilli are obtainable from dysenteric excreta : one, non-pathogenic, is able to decompose maltose, galactose, and mannitol with the formation of acid, but not of gas, and also able to produce indole ; the other, which is pathogenic and to which the term Bacillus dysenterice should be restricted, does not possess these characters. The former may be a degraded or transitional form of the
... nal form of the latter, but this is uncertain, as also is their relationship, if any, t o the bacilli of enteric fever. The prospects of establishing a n acquired imniunity against bacillary dysentery are not encouraging ; experiments on rabbits and guinea-pigs show that passive immunity is brief, although active immunity is of longer durat,ion. Development of Organic Matter in Seeds during Maturation. GUSTAV ANDRB (Compt. Tend., 1904, 139, 805--807).--ln the maturation of lupin and haricot seeds, the percentage amount of ash was always greater a t tho commencement than at the end. The same was observed as regards total nitrogen except in the case of lupins. The non-nitrogenous organic matter is a t first in the form of soluble carbohydrates.