'^JouSljanSyiriSf] PROGEESS OF MICROSCOPICAL SCIENCE. 53 
could not be made out. It lias always a mouth as a parasite, but when 
leading an extraneous existence the mouth most likely atrophies, for 
no trace of such an opening can then be discovered. The author con- 
cludes : " The mode of life of Gordius does not militate against this 
assumption, for it must appear questionable, whether and how a worm, 
dwelling for nine-tenths of its life in the intestine of insects, leaving 
them only to discharge its sexual products before it dies, whether and 
how such a creature is still capable of seeking and assimilating food 
in the aquatic element ?" — Ibid. 
Tlie GhitoncB, by Dr. Reincke, of Altona ; The Shelless Badiolarice 
of Fresh Waters^ by G. W. Focke, Bremen; On Fossile Eunicece, 
from Solenhofen {Eunicitis avitus), besides Observations on Fossil Worms 
in general, by Dr. Ehlers, of Gottingen, appear in this Zeitschrift. 
On the Conditions of the Lymphatics in Inflammations, by Dr. F. 
Losch, of St. Petersburg. — Inflammation was induced artificially in the 
peritoneum and testicles. The white blood-corpuscles were observed 
to move more or less rapidly. Subsequently a stasis took place, and 
the lymph of the lymphatic vessels diminished or disappeared. The 
author concludes that in the course of inflammation the formation of 
lymph ceases altogether. Blood was observed in lymphatics not only 
after traumatic injuries, but also after venous congestion. But how 
does the blood get into the lymphatics ? It cannot be explained other- 
wise than by assuming that the red blood-corpuscles, Vvdth the diffused 
parenchymatous fluid, pass into the lymphatics through apertures 
which probably exist in the epithelium, although such a process has 
not yet been observed. 
On the Organization of TJirombus. — That coagulated blood within 
vessels is capable of being converted into organized connective tissue 
was known to T. Hunter, Stilling, &c., yet '^whence the connective 
tissue takes its origin, hoio the vessels of the thrombus arise, ivhere 
and in which way the fibrine and the red blood-corpuscles disappear, 
are questions far from being decided." Reinhard advocates the 
peripheral development ; Virchow, the organization from within. Dr. 
N. Bubnoff, of St. Petersburg, has made the following observations 
after injections of cinnabar into the jugular vein, and the formation 
of a clot. Contractile cells are formed in the different strata of the 
wall of the vein containing cinnabar. The red blood-corpuscles dis- 
appear in the clot on the 6 th day ; the cells with cinnabar increase, 
become fusiform or divide (12th or 14th day), and the thrombus is 
completely organized. The author concludes, " The contractile cells, 
which are formed outside the wall of the vein, travel gradually through 
it, and arrive at last in the interior of the vein, even as far as the 
centre of the thrombus." — Archiv fiir Pathologische Anatomie and 
Physiology and fiir Klinische Medizin. Edited by Rud. Virchow. 
The Anatomy and Development of the Fresh-water Polyzoa (Phy- 
lactoloemata). — On this subject the last number of Reichert's and 
Du Bois Reymond's Archiv contains a very valuable paper by 
Herr H. Nitoche. It is illustrated by four plates, containing 
