478 SUMMARY OF CURRENT RESEARCHES RELATING TO 
The late Prof. Williamson. — We regret to have to report the death 
of one of our Honorary Fellows, Dr. W. C. Williamson, Emeritus Pro- 
fessor of Botany in Owens College, Manchester. Prof. Williamson, who 
was born in 1816, jvas best known for his extensive and long-continued 
researches on the minute structure of fossil plants. His capacities as a 
naturalist were so well known that, on the foundation of Owens College 
in 1851, he was made Professor of Natural History, and was required to 
teach every branch of biology. As the college increased, special chairs 
for various of these branches were founded, so that at last he was able tO' 
confine himself to botany. In 1892 he resigned his chair, and, settling 
near London, was an occasional attendant at our meetings. 
The following is a list of Prof. Williamson’s contributions to the 
Transactions of this Society : — 
On the Structure of the Shell and Soft Animal of Polystomella 
crispa ; with some Remarks on the Zoological Position of the Fora- 
minifera. (Trans. Micr. Soc. London, ii. (1849) pp. 159-80, pis. 2h 
and 26.) 
On the Minute Structure of the Calcareous Shells of some Recent 
Species of Foraminifera. (Trans. Micr. Soc. London, iii. (1852) pp. 105 
-28, pis. 17 and 18.) 
Further Elucidations of the Structure of Yolvox Globator. (Trans. 
Micr. Soc. London, N.S. i. (1853) pp. 45-56, pi. VI.) 
On the Minute Structure of a Species of Faujasira. (Trans. Micr. 
Soc. London, N.S. i. (1853) pp. 87-92, pi. X.) 
On the Structure and Affinities of some Exogenous Stems from the 
Coal-measures. (Monthly Micr. Journal, ii. (1869) pp. 66-72, pi. XX.) 
The late Dr. Anthony. — Our late Fellow, who died on June 1st last, 
at Edgbaston, Birmingham, served for several years on the Council of 
the Society, and was deeply interested in its welfare. He was M.D. 
of the University of Cambridge, some time Fellow of Caius College, 
and F.R.C.P. Dr. Anthony was eighty-one years of age at the time of 
his death. 
j 8. Technique.* 
(1) Collecting- Objects, including Culture Processes. 
Resistance of Lower Vertebrates to Artificial Microbic Infec- 
tion.f — In his experiments on the mode of resistance of certain lower 
Vertebrates to artificial microbic invasion M. A. Mesnil used Gobio • 
fluviatilis , Perea fluviatilis, Carassius auratus, and the frog. The microbes 
were the bacilli of anthrax and of mouse septicaemia. The general 
conclusions at which the author arrived were that Teleostean fishes resist 
the bacillus of anthrax by means of phagocytosis. The lymph of these 
fish has neither bactericidal nor attenuating properties. The eosino- 
philous, or rather, cells with granulations, are either absent or insignifi- 
cant in number. The frog, in which eosinophilous cells are frequently 
abundant, resists anthrax in the same manner as fish. By means of its 
phagocytes it also incorporates the living virulent microbes of mouse 
* This subdivision contains (1) Collecting Objects, including Culture Pro- 
cesses; (2) Preparing Objects ; (3) Cutting, including Imbedding and Microtomes;. 
(4) Staining and Injecting; (5) Mounting, including slides, preservative fluids, &c. 
(6) Miscellaneous. f Ann. Inst. Pasteur, ix. (1895), pp. 301-47. 
