37G 



PROCEEDINGS OF THE SOCIETY. 



MEETING 



Held on the 15th of Apeil, 1903, at 20 Hanover Square, W. 

 Dr. Henry Woodward, F.R.S., President, in the Chair. 



The Minutes of tbe Meeting of the 18th of March, 1903, were 

 read and confirmed, and were signed by the President. 



The List of Donations to the Society, exclusive of exchanges and 

 reprints, received since the last Meeting, was read, and the thanks of 

 the Society were voted to the donors. 



From 

 Beck and Andrews, Photographic Lenses, 3rd edition. (32mo,\ m a h. 



London, 1903) / ■"* Authors. 



Lafar, Franz, Technical Mycology. Translated by Chas. T. C.\ m. p „., 



Salter. Vol. ii. part i. (8vo, London, 1903) / J-M rwtitaiurs. 



Quarterly Journal of the Geological Societv, Nos. 1, 4, 6, S,\ ,™ « . . 



10,13-55. (8vo, London, 1845-1858) .." J me society. 



An old Microscope by Dollond Mr. Wynne E.Baxter. 



Mr. C. F. Rousselet exhibited a series of 22 slides of mounted 

 Rotifers of the genus Brachionus, comprising 16 different species, of 

 which one is as yet undescribed, and four varieties. He said that 69 

 species of Brachionus in all had been described, but he thought it was- 

 probable that about half of these were synonyms or varieties. He then 

 gave some particulars as to the characters and habitats of the specimens, 

 exhibited, and where they came from : England, Germany, Bohemia,. 

 Hungary, Syria, Hong Kong, and America. Incidentally, he also men- 

 tioned that the Brachionus rubens exhibited, which is mostly found 

 semi-parasitic on Daphnia pulex, was the true species of Ehrenberg, and 

 different from the species figured under that name in Hudson and Gosse's. 

 monograph. 



The President said they were greatly indebted to Mr. Rousselet for 

 arranging this very interesting exhibition, and thought he had done- 

 well to confine it to specimens of one genus for the sake of comparison 

 between the different species. They were also further indebted to- 

 Messrs. Watson for the loan of the Microscopes for the purposes of this, 

 exhibition. Votes of thanks to Mr. Rousselet and to Messrs. Watson, 

 were put from the chair and carried unanimously. 



