4 Notes and Comments. 



then twice a week for a month, then once a week or Jess in 

 cold weathe; ; in from rive to fifteen months, the specimens 

 will ripen. Flat white porcelain dishes, used for photographic 

 work, are very nice and useful. The necessary tools are a 

 good small paint brush, a tiny piece of sponge, and an old 

 knitting needle, but fingers must do most of the work. Keep 



Skeleton Leaves of Ivy. 



the specimen under water, supported on a piece of glass/ 

 We are permitted to reproduce two of the illustrations. 



THE PAL^ONTOGRAPHICAL SOCIETY. 



Notwithstanding many adverse circumstances the Palae- 

 ontographical Society was able to issue its Report for 1915 

 before the close of 1916. It is occupied by two important 

 memoirs. The first, by Dr. A. Smith Woodward, F.R.S., 

 describes the Wealdon and Purbeck Fishes, and is illustrated 

 by ten plates, besides numerous blocks in the text. Dr. Smith 

 Woodward's unrivalled opportunities, together with his 

 exceptional knowledge, make this memoir of especial im- 

 portance. The second is Part II of Mr. W. K. Spencer's 

 ' British Palaeozoic Asterozoa ' in which he deals with a very 

 intricate and difficult branch of Palaeontology. The specimens 

 he describes and figures are principally from the Upper Ordo- 

 vician and Upper Silurian. 



PROTECTIVE SHELL-BANDING 



In The Naturalist for 1909 the Rev. E. A. Woodruiie- 

 Peacock stated that around Brigg the shells occurring most 

 commonly at thrush anvils were unbanded, while shells with 



Naturalist 



