136 Notes and News. 



gation of trees and plants from leaves alone is an interesting sub- 

 ject on which we invite correspondence. 



It is the aim of this magazine to present something of interest 

 each month to as many classes of readers as possible. We num- 

 ber among our patrons geologists, botanists, zoologists, and those 

 interested in floriculture and practical horticulture, but we are 

 obliged to omit or but slightly touch upon subjects of great im- 

 portance, to some of our readers at least, through lack of space. 

 Thirty-two pages will not begin to hold all that we would — but- 

 there is always room for the best. 



NOTES AND NEWS. 



G. W. Wright, Karana^hope Rd., Auckland, New Zealand, 

 desires to exchange New Zealand for American shells, and invites 

 correspondence. 



Miss Ida M. Shepard, of Long Beach, California, has been 

 making extensive collections of San Diego shells this winter, and 

 intends collecting on the coast of Lower California. 



A specimen of diatomaceous earth from the ocean beach near 

 San Diego found by C. R. Orcutt some years ago, has been ex- 

 amined by Clarence Lown. It was very like some samples of the 

 Redondo Beach deposit, and may have been washed from there. 

 The sample contained some of the rarer species of diatoms, and 

 was particularly rich in Aulisci. 



The asbestos mines of Skagit county, Oregon, produce a supe- 

 rior quality of asbestos, and the output is rapidly increasing. 

 Large quantities are being shipped to Portland and Tacoma. 



LIBRARY CATALOGUE. 



(Scientific books and periodicals may be ordered through our Book and Subscription 



Department.) 



Recent accessions to the Library of the West American Mu- 

 seum of Nature and Art will be catalogued monthly. 



4063. Catalogue of the land and freshwater mollusca of the 

 British Isles, with all the named varieties. By T. D. A. Cock- 

 erell. From the author. 



4064. U. S. Board on Geographic names. Bulletin No. 1, 

 issued Dec. 31, 1890. Published by the Smithsonian Institution. 



4065. Bull, of the Museum of Comparative Zoology, XX, 

 No. 4. Cristatella: the origin and development of the individ- 

 ual in the colony. By C. B. Davenport. With eleven plates. 

 November, 1890. 



4066. The American Garden: an illustrated journal of horti- 

 culture. Edited by L. H. Bailey. Vol. XI, 1890. New York, 

 The Rural Publishing Co. 780 pp., Royal 8vo, 



