MISCELLANEA. 189 



now generally merged into a single species, though Francis 

 named them as above." 



To sum up, I conclude that Alcyonella stagnorum, Nitella, and 

 Cystopteris dentata are additions to the list of local Natural His- 

 tory objects.^' 



Paludicella procumhens and the light tinted Hydra found in 

 Broomley Lough ; Volvox glolator, and BJydrochoris morsus-rance, 

 have been catalogued and published in the "Transactions" of 

 this Society many years ago : their introduction here is intended 

 to confirm previous observations and indicate persistence of habi- 

 tat. And that new habitats may be claimed for JVostoc, Volvox 

 glohator, Batrachospermum moniliforme, Ch<Btophora endivifolia, 

 C. elegans, Braparnaldia glomerata, and Fontinalis antipyretica. 



In conclusion, I may remark, that nearly all the examples 

 enumerated were detected while searching for something else, 

 and that everything suspected to be new or unknown was sub- 

 mitted to competent authorities for determination. — M. S. Rol- 

 son, Hon. Sec, North of England Microscopical Society, December, 

 1883. 



* Alcyonella stagnorum was discovered at Howick, Northumberland, by Mr. K. Emble- 

 ton more than fifty years ago. It is recorded in the first edition of Dr. Johnston's 

 " Zoophytes ;" and in Mr. Alder's " Catalogue of the Zoophytes of Northiunberland and 

 Durham." See " Trans. Tyneside Nat. Field Club," Vol. I., pp. 271, 316, 368, and Vol. 

 III., p. 159. Ed. 



