106 
a foot passenger s mouth, consists of a large proportion of 
vegetable matter which has passed through the stomachs of 
animals, or which has suffered partial decomposition in some 
way or other. This is not an agreeable piece of information, 
but it is a fact. It shows the necessity, in a sanitary point 
of view, of the streets being well watered before the scaven- 
gers are allowed to commence operations; otherwise the 
light dust is only made to change its locality, and is not 
properly removed. It is not pleasant to contemplate the 
possibility of germs of disease being wafted along with this 
decaying matter and inhaled by those whose condition 
might be favourable for its development. The author hopes 
to bring the details of these observations before the Society 
at some future time. 
H. A. Hurst, Esq., read a paper on the “ Flora of Gibral- 
tar,” in which he remarked on its great richness, com- 
prising as it does, in an area of about 1J square miles, 500 
plants, being one half of those contained in the Cybele 
Hibernica, and one third of the whole number enumerated 
as growing in the British Islands in the last London Cata- 
logue. 
X 
