40 QUARTERLY CHRONICLE. 
the title of a paper by Dr. P. Schroder, in which he gives the 
following as the results of his labours:—1. The observers 
who hitherto have written on the nerves in the intestine are. 
not in accordance as regards their statements; they have 
only this in common, that they view the structure in ques- 
tion as belonging to the nervous system. 2. The bodies of 
Billroth become developed from a network of vessels filled 
with stagnant blood, as Reichert, and after him Hoyer, have 
already some time since described. 3. The bodies named 
belong to the part of vascular system which is intermediate 
in the passage of the capillary to the vein, and forms net- 
works in the stratum vasculosum. 4. The bodies of Billroth 
are wanting in every characteristic mark of nerve-fibres, or 
ganglion-corpuscles, or of nerves and ganglia. 5. By injec- 
tion of the vessels of the intestine with carmine solution one 
can find injected uetworks in the stratum vasculosum, which 
have quite the structure of the “ bodies of Billroth.” Through- 
out the injected mass one can perceive the characteristic for- 
mation for the same. 6. Passages between undeniable ves- 
sels and the Billrothian bodies can with certainty be deter- 
mined. 7. Also in intestines of growing animals, in which 
it is not usual to find the networks in question, one can 
detect these same bodies, by skilful management, in the re- 
gion of the portal vein. 8. The formation of Billroth’s bodies 
can be prevented in the intestines of new-born animals if 
the conditions under which they arrive at completion be 
removed. 
It is so long since anything has appeared on the Grega- 
rinide that a paper from Dr. Lieberkthn on some points 
connected with them is of great interest. In the ‘ Trans. 
Mic. Soc.’ for this quarter also will be found a paper 
on Gregarinide. Dr. Lieberkiihn, whose researches on 
the Monocystis Lumbrici are so valuable, observes that 
in the perivisceral cavity of the earthworm are to be 
found, between the intestine and integument, numerous 
cylindrical Gregarine, which exhibit a uniform longitudinal 
striping of changeable length and breadth, disposed on the 
inner surface of the whole cortical substance of the saccule 
which constitutes the Gregarina. 'They may be observed to 
perform lively movements in water, whereby the fluid matter 
contained in their interior, together with the granules and 
vesicle, are driven about from end to end. The same moye- 
ments were observed in other examples which were under- 
going the pseudo-conjugation peculiar to these creatures. In 
these cases the Gregarine were so tightly jomed as not to 
be separable without tearing, and the body wall was observed 
