470 CORRESPONDING SOCIETIES. 



Richardson, Norman F. Economic Value of our Birds. Field. Mar. 5, p. 299. 

 [Riley, J. H., and Morris, R.] Black Redstart in Lancashire. Brit. BiriU. 



' May, p. 282. 

 RiNTOUL, Leonora Jeffrey, and Baxter, Evelyn V. Tree-creepers on the Isle 

 of May. Scot. Nat. May, p. 75. 8cc also Brit. Buds. Oct., p. 118. 



Sec Evelyn V. Baxter. 



Ritchie, James. Walrus in British Waters. Scot. Nat. Jan., pp. 5-9,- May, 

 pp. 77-86. 



Golden-toothed Sheep of Aberdeenshire, torn. cit. Mar., p. 36. 



'Blue-mouth' (Scorjjccna dactyloptera) off Dunbar, tout. cit. Sept., 



t). 161. 



Great Fan Shell (Pinna fragilis, Peim.) off Shetland, torn, cit., p. 162. 



Great Extinct Ox or Urus in Linlithgovvshii'e, torn. cit. Nov., p. 168. 



Hairworms (N ematomor-pha) in Scotland, tain, cit., p. 185. 



Ritchie, John. Epidemic among Roach [Leuciscus rutilns, L.) on the Forth 



and Clyde Canal during the Summer 1916. Glasgow Nat. Dec, 



pp. 160-163. 



Museum Notes. Trans. Perth. Soc. Nat. Set. Vol. VII., pt. iii., p. 106. 



RiTSON, C. F. A. Notes on Some of the Rare British Birds which Breed in 



Denmark. Oologists' Bee. Dec, pp. 95-101. 

 Riviere, B. B. Autumn Movements of Gulls on the Norfolk Coast. Trans. 



Norf. and N. Nat. Soc. Vol. XI., pt. ii., pp. 103-127. 



See Evelyn V. Baxter. 



Sec S. H. Long. 



Robinson, H. W. Swallows and Size of Broods in 1920. Brit. Birds. Feb., 

 p. 208. 



Late Stay of British Lesser Black-backed Gulls, torn. cit. Mar., p. 236. 



Status of Arctic Tern in Lancashire, torn. cit. May, p. 281. 



Dive of the Goosander, torn. cit. July, p. 45. 



Status of the Arctic Terns in Lancashire and the Fames, torn. cit. Sept., 



p. 92. 

 — — British Shoveller [sic) Ducks in Holland and Denmark. Country Life. 



Jan. 22, p. 110. 

 . Longevity of Birds, torn. cit. Mar. 5, p. 290; Aiir. 2, p. 411. 



Pine Marten in Britain, torn. cit. Mar. 26, p. 381. 



Food of the Black-headed Gull, torn. cit. May 14, p. 595. 



Greater Snow Goose in the Solway Firth, torn. cit. May 21, p. 625. 



• American Robin's Migration, torn. cit. Aug. 20, p. 240. 



Common Terns Wintering in Scotland, torn. cit. Sept. 10, p. 333. 



More American Robins in the North, torn, cit., p. 334. 



Migration of an American Bird introduced into England, torn. cit. 



Nov. 12, p. 633. 



Nesting- Terns and their Migrations. Field. Jan. 1, p. 22. 



Red-breasted Thrush, or American ' Robin,' torn. cit. June 4, p. 710. 



Robinson, J. F. Nature Round Bridlington. Nat. Union Teachers^ Souvenir, 



pp. 65-73. 

 Robinson, T. At Home with the Sand Martin. Country Life. Sept. 10, 



p. 333. 

 ROBSON, C. E. Convolvulus Hawk Moth [Sphinx eonvolridi). Trans. Nat. 



Hist. Soc, NoTthumherland, Durham, and Newcastlc-on-7'yrie. Vol V., 



pt. II., pp. 3.30-331. 

 RoBSON, Charles. Some Observations on a few of our Reptiles. Vase. Aug., 



pp. 113-117. 

 RoBSON, G. C. Is Bisexualitv in Animals a Function of Motion? Nature. 



Oct. 13, p. 212. 

 Roebuck. W. Denison [Late]. Census of the Distribution of British Land and 



Freshwater Mollusca. Jovrn. Conch. June, pp. 165-211. 

 RoosE, Thomas. Late Willow Warbler at Bolton Abbey. Nat. Feb. . p. 78. 

 Rothschild. Case of Parthenogenesis in Lasiocanipa quercvs, L. Tranx. 



Bnf. Soc. Apr., p. liv. 

 Rothschild, N. Charles. Second Emero-ence of l/r.^pnia ma/r.r. Kiit Oct 



p. 241. \ 



