Studies upon the life cycles of the bacteria ... / by F. Loḧnis.

  • Löhnis, F. (Felix), 1874-1930.
Date:
1921-
Catalogue details

Licence: Public Domain Mark

Credit: Studies upon the life cycles of the bacteria ... / by F. Loḧnis. Source: Wellcome Collection.

    42/346 (page 36)
    tericus aureus. Hauser’s early work upon his Proteus (1885) furnishes a practically complete picture of the life history of this group of organisms. Fuhrmann (1906-1908) studied the life cycles of his Pseudomonas cerevisiae, several Fluorescentes, and of some other rods. Alm- quists investigations (1893-1917) were especially concentrated on the typhoid bacillus and the cholera vibrio. The latter had also been the object of the little known work of Ferrdn (1885) and of Dowdeswell (1889-1890). Firikler and Prior (1885) gave a fairly complete report upon the life cycle of I their vibrio, isolated from Cholera nostras. Albrecht and Ghon (1900), N. K. Schultz (1901), as well as Rowland (1914), have furnished valuable contributions to the complete knowledge of the life history of B. pestis. Rosenbach (1909) did the same concerning the bacteria causing erysipeloid, rouget and septicaemia of mice. The life history of some organisms closely related to Friedlander’s Pneumonie bacillus was described by Bordoni- TJjjre- duzzi (1888) and by Jehle (1902). Johan Olsen (1897) investigated the life cycle of B. mycoides and of other spore-forming bacilli. The glanders organism has been studied along similar lines by Carpano (1913), the leprosy organism by Lutz (1886), Barranikow (1900), and by Kedrowski (1901), the tubercle bacillus by Schroen (1886-1904) and by Maher (1910-1913) and the Corynebacteria by E. de Negri (1916), and by Bergstrand (1918). Erzysztalowicz and Siedlecki (1908), as well as McDonagh (1912-1913) made the life history of Spirochaeta pallida the object of their investigations. In Meirowsky’s “Studien fiber die Fortpflanzung von Bak- terien, Spirillen und Spirochaeten'’ (1914 b) for the first time representatives of very different groups (B. tuberculosis, leprae, paratyphi, enteriMis, various spirilla, and spirochaets) have been made the object of a thorough comparative research. Of equal or even greater impor¬ tance are the investigations of Hort and his collaborators (1915-1917), who worked with meningococci, typhoid, paratyphoid, dysentery, and colon bacilli. And in our own experi¬ ments upon the life cycles of the bacteria (1916) representatives of practically all groups of bacteria, except mycobacteria and spirochaets, have been included. Fig. 1 on Plate A taken from our first paper (Lohnis and Smith, 1916 a) shows in a sche¬ matic arrangement the rather complicated life cycle of B. azotobacter, and a glance at the two Tables II A and II B, taken from the same paper (pp. 683 and 689) and revised with regard to some additional findings mentioned in our second preliminary communication (1916 b), reveals at once the important fact that essentially the same types of growth occur in the life cycles of all different kinds of bacteria. Table II A.—Types of growth observed with 24 cultures of Azotobacter. [The laboratory numbers of the cultures are given at the head of the columns.]