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continue, and thus, by July or thereabouts — the process 
haying gone on normally — a larger outbreak of the “ disease 
spot ” occurs from the numerous new centres. During July 
and August very many leaves fall, and a lull occurs until the 
renewal of the growing period in September and October 
produces more leaves. These, meanwhile, are having spores 
scattered on their surfaces, accumulation of disease spots 
continues through the next three or four weeks, and in 
December, or thereabouts, the second general “attack of 
disease ” has become established. 
Very numerous and important experiments, published in 
detail in the “ Journal of the Linnman Society,” Bot., Yol. 
xix., August, 1882, could only be shortly adverted to, and 
the author expressed his conviction that so bare an outline 
of the results as the short time at his disposal allowed, would 
not convey sufficiently clear ideas of the matter ; and, indeed, 
to an audience unacquainted with the details of growth, 
cultivation, &c., of coffee, and the conditions of existence in 
a tropical island, it was not easy to give an intelligent 
sketch in a short time, even of the salient points. 
As to remedial measures, Mr. Ward expressed his satis- 
faction with the energetic efforts of the Ceylon planters, 
who fully recognise the importance of planting tea, cinchona, 
cocoa, “ India-rubber,” and other trees which no such disease 
attacks, and which, of course, screen the coffee more or less — - 
an obvious mode of lessening the areas of coffee exposed to 
the wind blown spores of Hemileia, and of adding new 
sources of income. 
The following paper was read at the Ordinary Meeting 
held on the 1 7th October, 1882. 
“Note on the Development of Living Germs in Water,” 
by Dr. R. Angus Smith, F.B.S. 
In a report on Proceedings under the Rivers Pollution 
