250 
PROCEEDINGS OF THE SOCIETY. 
Meeting of 20th February, 1895, at 20 Hanover Square, W. 
The President (A. D. Michael, Esq., F.L.S.) in the Chair. 
The Minutes of the meeting of 16th January last were read and 
confirmed, and were signed by the President. 
The Secretary announced that the Trustees of the British Museum 
had presented the Society with a very valuable work — a monograph of 
the Mycetozoa which had been prepared by Mr. Lister. Mr. A. W. 
Bennett, who had seen this book, would no doubt say a few words 
about it. 
Mr. Bennett said that this very admirable production had been eagerly 
looked for for some time past by students of these lower classes of life, 
which might be said to possess a peculiar interest from the position they 
occupy, apparently on the border line between animal and vegetable 
life. This work would no doubt be one also of special interest to the 
Fellows of that Society, inasmuch as the author was the son of one and 
the brother of another gentleman who had in past years been so inti- 
mately associated with them — he referred to Mr. J. J. Lister and Sir 
Joseph Lister. The work in question professed to be a description of 
all the Mycetozoa in the British Museum — but in addition to this it 
gave an account of many species not in that collection, and formed, 
therefore, a complete monograph of these organisms, illustrated by 
collotype reproductions of a number of very beautiful water-colour 
drawings by Miss Lister. Another point in which this work would be 
of interest to many w^ould be the fact that it went on the line of rather 
reducing than of increasing the number of species, and that it did not 
describe a single new genus, but on the contrary, had altogether suppressed 
a large number of species, described by other writers as separate, but 
which, in reality, were but slight varieties of those already known. 
The work before them was a very beautiful and remarkable addition 
to those which had hitherto treated of the subject. 
The President said that the remarks made by Mr. Bennett were not 
the first speech he had already heard in commendation of Mr. Lister’s 
work during the short period which had elapsed since it was published. 
A vote of thanks to the donors was then put from the chair, and unani- 
mously carried. 
Mr. E. B. Green exhibited and described a large number of 
drawings of parasitic growths on root-hairs, drawn to a uniform scale 
of x 100. 
Prof. F. Jeffrey Bell thought that before they went into any general 
discussion upon the question raised by Mr. Green it would be well if 
they could get some definite decision on one point of some importance, 
and that was as to the presence of chlorophyll in these root-hairs. The 
statement in itself was a somewhat startling one, and it did not seem to 
be supported at present by any direct proof, so that unless they knew 
