1888-89.] Messrs Macleod and Milles on Asiatic Cholera. 35 
Asiatic cholera, or as causing the death of the animal, far less a 
mortality of over 60 per cent. 
4. Pure cultivations of the comma bacillus, introduced into the 
stomach under the precautions described, are pathogenic to the 
guinea pig. 
5. Injected with similar precautions, the contents of the ileum 
from those animals killed by injections of pure cultivations of the 
bacilli, act in the same manner as pure cultivations of that organism. 
6. The organism multiplies in the small intestine of the animal, 
and there is associated therewith changes similar to those in man in 
Asiatic cholera. 
7. As there are conditions which favour the passage alive of the 
bacillus through the stomach of the guinea pig, and also conditions 
which favour its multiplication in the small intestine of that animal ; 
so in man, as there cannot be a doubt that the organism finds con- 
ditions favourable to its multiplication in his small intestine, it must 
have found conditions favourable to its entrance alive, through, in 
all probability, the mouth and the stomach. 
8. There is strong evidence, therefore, for regarding the comma 
bacillus of Koch as the cause of Asiatic cholera. 
Preliminary Remarks on the Homologies of the Mesen- 
teries in Antipatharia and other Anthozoa. By George 
Brook, Lecturer on Comparative Embryology in the University 
of Edinburgh . 
(head December 17, 1888.) 
The mesenteries of many Anthozoa are usually regarded as being 
arranged in pairs, the members of a pair being adjacent mesenteries. 
The common shore Anemones, belonging to the Hexactiniae, show 
this arrangement very well. In a typical case, the mouth and 
stomodaeum are elongated, and the pairs of mesenteries are arranged 
iu multiples of six. There are six primary pairs passing from the 
body-wall to the stomodaeum, which are complete; six secondary 
pairs, which may also reach the stomodaeum ; twelve pairs of a third 
series, which are not complete; forty-eight incomplete pairs of a 
fourth series, and so on. Of the primary pairs, two have the 
