January ijth, i8g8?[ PROCEEDINGS. xxv 



{Microscopical a?id Natural History Section.'] 



Ordinary Meeting, January 17th, 1898. 



Mark Stirrup, F.G.S., President of the Section, in the Chair. 



Mr. Mark L. Sykes, F.R.M.S., Ardwick, was elected an 

 Associate of the Section. 



Mr. Charles Bailey exhibited a large number of specimens 

 of a floating fern Salvinia nutans Willd., found plentifully in 

 ponds round Berlin and generally throughout Northern Europe, 

 but not as yet noticed in this country. He described in detail 

 the floating leaves, the pendant, submerged, root-like leaves, and 

 the fructification. 



Mr. Mark Sykes exhibited several specimens of Termites, 

 so-called white ants, recently received from Sierra Leone, also 

 their nests, the arrangement and construction of which he 

 described. 



Mr. J. F. Allen exhibited a number of manganese alloys, 

 some of which, after being submitted to a severe strain, had 

 recovered their elasticity after a lapse of about three weeks. 



Mr. Peter Cameron contributed a paper on " Hymen- 

 optera Orientalia, or Contributions to a knowledge 

 of the Hymenoptera of the Oriental Zoological 

 Region," Part VII. 



