770 
ON PLANTS IN RELATION TO ANIMALS. 
culture of Moeglin, proposed to resolve the question 
whether pleuro-pneumonia originates from contagion alone 
or under the influence of other causes, and therefore com¬ 
menced experiments which extended over ten years. Various 
artificial means were adopted for the generation of the 
disease, such as bad feeding and the influence of such un¬ 
healthy conditions as have been, whether rightly or wrongly, 
considered the cause of the disease. In no case did these 
measures result in spontaneous origination of the lung 
disorder.” The opinions of Professors Bouley and Gamgee 
are cited in support of those above advanced, and this 
portion of the paper concludes : “ From what precedes, it 
results that it has been proved experimentally that pleuro¬ 
pneumonia originates solely from contagion, hence veterinary 
science must point out measures which should be taken to 
efficaciously arrest the spread of the scourge, and the govern¬ 
ment ought more vigorously than it does now to forbid the 
movement and sale of suspected animals, since they are the 
most fruitful source of propagation of the disorder in everv 
direction by the expired air, nasal discharges, contamination 
of trucks, and such means.” Still we must await M. 
Willems’ account of the bacteria of pleuro-pneumonia. 
ON PLANTS IN RELATION TO ANIMALS. 
By Professor James Buckman, F.G.S., F.L.S., &c. 
[Continued from p. 687.) 
The species of Clovers which we are now about to 
describe may be distinguished as follows : 
Trifolium repens —Wbite Dutch Clover:—Heads many 
flowered, axillary, pedicels distinct; 
calyx not inflated, the upper tooth 
the longest. Corolla persistent, 
white at first, then turning to a 
brown dry head of flowers. 
,, fragiferum —Strawberry - headed Trefoil :—Head 
many-flowered, all axillary ; pedi¬ 
cels short, bracteate. Calyx two¬ 
lipped, becoming inflated above, 
membranous, reticulated ; teeth 
equal, the upper pair lengthening. 
Corolla withering, standard deci¬ 
duous. Flowers suffused with a 
slightly pinkish hue. 
