212 



parent by transverse fission, with the prostomium not fully 

 ■developed from the clitellum. The specimen was killed and fixed 

 with Lang's Fluid, stained with Para-carmine, and mounted in 

 Balsam. 



February 3rd, 1899. 



Mr. H. Morland : A silvered slide of Amphipleura pellucida. 

 The diatom was resolved by means of a vertical illuminator and a 

 Leitz's xo^h Oil Immersion objective. 



Mr. A. W. Dennis : Specimens of Crihraria argillacea taken 

 from a fir stump near Stonehenge. 



Mr. A. E. Hilton : The nymph of Teg eocr anus latus, mounted 

 in glycerine. The specimen was found on decaying bark at 

 Golder's Hill, Hampstead. 



Messrs. Swift & Son : A M oiler's Diatom Test-plate on a 

 photographic base in Mono-bromide of Naphthaline. 



