PRESIDENT'S ADDRESS. lix. 



the freshwater deposits derived to a great extent from the denuda- 

 tion of the Upper Chalk were spread over by a great river flowing 

 from west to south. After a long succession of oscillations, causing 

 a series of brackish, marine, and freshwater deposits, the Bagshot 

 period was ushered in by a depression which caused the great river 

 to empty itself into the Atlantic instead of the German Ocean, and 

 which brought in a warmer sea-fauna. There were a series of small 

 lakes in the Corfe and Poole district ; those on the east were filled 

 by pipeclays, those on the west by the finer clays of which the 

 Staffordshire ware is made. Mr. A. Smith-Woodward, F.G.S., 

 promises us a paper on a new species of PhoHdophorus from the 

 Oxford clay at Chickerell, found by, and in the possession of our 

 valued Secretary, who, as well as our equally-valued Treasurer, has 

 made several additions to the entomological lists of the county 

 since last year. 



Mr. E. G. Baker, F.L.S., in the Botanical Department of the 

 British Museum, contributed a paper " On a variety of Planiago 

 coronopus from Charmouth." It is a remarkable variety, and 

 met with in the south of France and Italy, where I have myself 

 seen it. It has been segregated by the Portuguese botanists and 

 made a new species of, which Mr. Baker refuses to admit, a 

 conclusion at which I had before arrived. 



LIPOPTENA CERVI. 



By a mere chance I took an extremely rare fly in the summer of 

 last year. Curtis gives it a place in his great work on British 

 Entomology, where it appears under the name of Hcvmolora 

 pallipes. The British Museum collections possessed only one 

 solitary specimen, taken from a red deer in Germany more than 

 100 years ago. There is a paper on this fly in the " Deutsche 

 Entomologische Zeitschrift," vol. xxi., p. 297, by Stein, who says 

 that the winged males are met with in Midsummer up to the 

 autumn in woods inhabited by the roe and the red deer, and that 

 the females which have lost their wings are found in the same 

 season among the hair of those animals. He quotes another 



