PROCEEDINGS OF THE SOCIETY. 
299 
and rare book, containing plates and descriptions of such plants as grew 
in the environs of London at that period ; it would no doubt be very 
useful for reference and comparison, although so many of the species 
were no longer to be found in the places indicated that the other work 
presented by the same donor, the ‘ Flora of Hertfordshire,’ would 
probably be of greater value to the modern collector. The volume 
presented to them by the Royal Society was one in continuation of the 
catalogue of scientific papers which were so valuable a help to all who 
were working up any particular scientific subject. The first six volumes 
of the series contained a list of all known papers published from 1800 
to 1861; these were followed by two more which covered the period 
of ten years from 1864 to 1874, a work of great labour and cost; in the 
latter respect they received some assistance from the Government. 
Since that time, however, the Government bad refused to help in 
the matter, and the work remained in abeyance until the Cambridge 
University Press took it up ; the present volume was one of those 
intended to include the further period from 1874 to 1883. It seemed 
clear from the proportions which this book attained that the decade 
could not be comprised this time in two volumes, a fact which showed 
to what an extent scientific literature was increasing. He called 
attention to an important omission from the volume before them, the 
contents of the first nine volumes of the Transactions of the Zoological 
Society of France having been entirely neglected. 
Mr. Watson exhibited and described a new vertical camera for 
photomicrography, designed upon the same lines as that used by Dr. 
Van Heurclc. 
The President inquired if it could also be used for drawing objects 
placed under the Microscope ? 
Mr. Watson thought it would be possible to utilize it for this 
purpose if something translucent were used to draw upon. 
Prof. Bell said that Mr. Hermann, who wrote to the Society in 
December last describing the locality where Volvox glob a tor was found 
in abundance, bad sent another letter giving some further particulars, 
and bad forwarded with the letter a bottle containing a quantity of this 
and other organisms. 
The President then read his Annual Address, postponed from the 
last meeting under the special circumstances then mentioned. The 
subject chosen was the Impregnation and Modes of Reproduction in Ferns 
and Mosses ; diagrams in illustration were exhibited and explained, and 
specimens were also shown under Microscopes in the room. A supply of 
duplicate specimens was also provided for distribution amongst the 
Fellows present. 
The Rev. Edmund Carr was sure that he should express the feeling 
of the Society when be said they were very much obliged to the 
President for his very interesting and able address. It showed bow 
extremely careful the observations must have been, and what pains must 
have been taken in the watching these things so as to be able to detect the 
