YORKSHIRE NATURALISTS' UNION. 



The Marine Biology Committee will hold its Annual Meeting 

 at Robin Hood's Bay and at Scarborough, from ist September to 

 5th September, 1921. 



All the time will be spent at Robin Hood's Bay, with the 

 exception of an excursion to the South Bay at Scarborough, on 

 Monday, 5th September. 



Will members intending to be present please write to the 

 convener for details. 



A. I. BURNLEY, 



Convener. 



1056 BOOKS ON NATURAL HISTORY AND SCIENCE, 



comprising all subjects, for disposal. Catalogues free. 



S. Frampton, 37 Fonthill Rd., London, N. 4. 



BOOKS FOR SALE. 



Spencer Fullerton Baird. By Dall. 7/6 

 Astronomy, Gierke, Fowler and Gore. 4/- 

 Beasts, Birds and Bees of Virgil. Royds. 2/- 

 RusT, Smut, Mildew and Mould. Col. Pis. Cooke. 3/- 



HlSTORY OF THE OXFORD MUSEUM. 2/6 



Medical Contributions to the Study of Evolution. Adami. 7/6 



Fourth International Ornithological Congress, Proc. 1905. 10/- 



EvoLUTiON in the Past. Knipe. Pis. 7/6 



Aristotle's Researches in Natural Science. Lownes. 4/6 



Turner on Birds. 1544. Evans. 5/- 



Darwin and the Problem of Life. Gunther. 7/6 



Waves of the Sea. Cornish. 5/- 



Waves of Sand & Snow. Cornish. 5/- 



Plant Life in Alpine Switzerland. Arber. 4/6 



A Picture Book of Evolution. 2 Vols. 2/6 a vol. 



Conditions of Life in the Sea. Johnstone. 5/- 



The Further Evolution of Man. Calvert. 4/- 



Life and Evolution. Hedley. 4/6 



Harmsworth Natural History. 3 Vols. 10/- each. 



Lessons from Nature. Mivart. 4/- 



Heredity. Thompson. 5/- 



Darwinism and Human Life. Thompson. 4/6 



The Lessons of Evolution. Hutton. 2/6 



The Chrysanthemum. F. W. Burbridge. 2/6 



Hunting in British East Africa Maderia. 7/6 



The Flora of West Yorkshire. F. A. Lees. 11/6 



The Glow-worm and other Beetles. Fabre. 6/6 



Birds and Man. W. H. Hudson. 4/- 



Invertebrate Palaeontology. Hawkins. 4/6 



Evolution of a Coastline. Ashton. 7/- 



Wasp Studies Afield. Rau. 6/- 



Through Southern Mexico. Gadow. 10/- 



The Making of Species. Dewar and Finn. 4/- 



Rambles of a Canadian Naturalist. Coloured Illust. S. T. Wood. 3/fi 



How to Lay out Suburban Home Grounds. Kellaway. (Pubd. at 8/6j. 3/6 



What is Instinct? C. Bingham Ncwiand. 2/6. 



Mendel's Principles of Heredity. Col. Pis. Bateson. 5/- 



' The Suk ' Language and Folk-lore. Beech. 3/6 



Animal Life and Human Progress. Dendy, C/6 



Meteorology for All. Horner. 3/- 



Dept. C, c/o A. BROWN & SONS, Ltd., Hull. 



