ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 181 



Transition Types between Bodo and Trypanoplasma.* — A. Alexieff 

 indicates that it is easy to arrange a series showing the morphological 

 transition from Bodo Ehrenberg to Trypanoplasma Laveran and Mesnil. 



Spirochaeta pallida in Ova of Congenitally Syphilitic Child. | 

 Jas. Mcintosh reports a case in which the ovaries, along with the other 

 organs, of a congenitally syphilitic child showed enormous numbers of 

 Spirochseta pallida (= Treponema pallidum). This has been previously 

 observed by Levaditi and Sauvage and by Bab. The spirochast evidently 

 passes upwards into the ovary by the connective-tissue stroma and in- 

 vades the Graafian follicles, even entering the ovum. The majority of 

 the invaded follicles showed no degenerative changes. The author con- 

 cludes that it is no longer legitimate to deny the possibility of the 

 passage of S. pallida directly through the ovum of a syphilised woman 

 to her offspring. 



Infection of Rabbits and Guinea-pigs with Syphilis. \ — Mario 

 Truffi gives a circumstantial detailed account of the infection of both 

 rabbits and guinea-pigs with syphilis. A cutaneous inf ectiou thus brought 

 about gives rabbits absolute and lasting immunity. 



Study of Sarcosporidia.§ — L. v. Betegh gives an account of the 

 structure of the sporozoites of Sarcocystis tenella Raill and S. blanchardi 

 Dofl. at different stages in their development. 



Ichthyosporidian Disease in Sea Trout. || — Muriel Robertson de- 

 scribes a parasite causing fatal disease in sea trout. It is closely allied 

 to, if not identical with, Ichthyosporidium y aster oplrilum from Motella 

 mustela and Liparis vulgaris. The parasite had invaded practically all 

 organs of the sea trout, but was most abundant in the muscles of the 

 heart. M. Robertson found a similar or identical form in 1906 in a 

 small flounder {Pleuronectes flesus). She also reports another occurrence 

 ■of what seems to be the same in the tissues of the haddock. 



* C.R. Soc. Biol. Paris, lxvii. (1909) pp. 649-51. 



t Centralbl. Bakt. Parasitenk.,li. (1909) pp. 11-13 (3 figs). 



t Op. cit., lii. (1909) pp. 555-65. § Tom. cit., pp. 568-73 (2 pis.). 



|| Proc. Zool. Soc, 1909, pp. 399-402 (3 pis.). 



-KS»+- 



