fifty-second annual report. 40l 



Papers read and Communications made to the Q.M.C. to 



THE End of the Year 1917. 



January 23r(Z. — Mr. David Bryce : On the Collection of the 

 Bdelloid Rotifers. Exhibition of apparatus. 



February 21th. — Presidential Address, Prof. Arthur Dendy : 

 The Chessman Spicule of the Genus Latrunculia : a Study in 

 the Origin of Specific Characters. 



March 21th. — Mr. A. E. Hilton : On Trichia affinis, one of the 

 Mycetozoa. Mr. C. D. Soar : Two New Species of Freshwater 

 Mites. Mr. G. T. Harris : The Desmid Flora of Dartmoor. 



April 2Ath. — Dr. J. Rudd Leeson : On the Common House-Fly, 

 with Especial Reference to its Danger to Health. 



May 22nd. — Dr. Alfred B. Rendle : On Colour in Plants and its 

 Preservation. Exhibition of Plants : Specimens for Museums 

 and Herbariums. 



June 2M. — Mr. N. E. Brown : Evolution as illustrated by a 

 Genus of Plants. Exhibition of Living Plants. 



October 23rd. — Dr. G. H. Rodman : Lantern Demonstration of 

 Photomicrographs, with description and explanation. 



November 13th. — Mr. Jas. Grundy : On Polarisation. 



December Wth. — Mr. OfEord, F.R.M.S., Lantern Demonstration 

 of Insects' Eggs, with description. Mr. Jas. Grundy: 

 Further Remarks on Polarisation, with Exhibition of appara- 

 tus illustrative of the various methods. 



The Committee desires to thank those who have done so much 

 by their papers and addresses to interest the Club. The delay 

 in the appearance of the Journal is the inevitable result of the 

 shortness of labour in the printing trade owing to the war. 



The Hon. Secretary of the Excursion Sub-Committee reports 

 that the excursions were very satisfactory. Nine were arranged 

 for, and the average attendance was 20'9, a higher figure than in 

 the two previous years. Although nothing unusual in the way 

 of finds was recorded, much interesting material was obtained, 

 and the junior members benefited by the experience of those 

 more expert in the practice of pond-hunting. The visit to the 

 Royal Botanic Gardens, Regent's Park, in April showed how 

 greatly this excursion is appreciated, forty- two members being 

 present, and the thanks of the Club are due to the Royal Botanical 

 Society for their kindness in admitting the visitors. Thanks are 



JouRN. Q. M. C, Series II.— No. 82 30 



