2^ The Vilest American Scientist, 



NOTES AND NEWS. 



H. C. Thayer, late of Los Anjreles, died January 6, 1890. 



The American Association for the Advancement of Science 

 will meet at Indianapolis, Indiana, beginning August 19. A 

 large attendance is desired. 



It is announced that the late publishers of The West Ameri- 

 can Scientist, Messrs. Samuel Carson & Co., have recently 

 failed. 



Of the making of 'species' there is no end. 



California produced in 1S89, thirteen million dollars in gold — 

 about two-fifths of the entire gold product of the United States. 



Our valued contributor, Theo. D. A. Cockerell has returned 

 to England. 



In the May Naiitilus, Mr. Henry Hemphill, of San Diego, 

 describes an American species of Anadenus, from the Cuyamaca 

 mountains, east of San Diego. 



When the Coronado Beach Co. were boring an artesian well 

 on Coronado Beach, San Diego, in 1886, a fossil tooth was found 

 at a depth of iic feet which was presented by H. L. Story to 

 Mrs. R. S. Eigenmann. This has been examinerl by Prof E. D. 

 Cope, editor of the American Naturalist, who identifies it as a 

 left upj)er molar of an extinct species of horse, Equus excelsus. 



Dr. W. R. McNab, Professor of Botany at the Royal Cx)llege 

 of Science, Dublin, and director of the Botanic Garden at Glas- 

 nevin, died December 3d, 1889. Dr. McNab was distinguished 

 by his investigations in physiological botany and the minute 

 anatomy of plants both recent and fossil. 



The University of Pennsylvania has elected Professor Edward 

 D. Cope to the chair of Biology and Paleontology and Dr. 

 George H. Horn to the chair of Entomology. 



The American Geologist for January, 1890, contained notes on 

 the geology and scenery of die islands lorming the southerly 

 line of the Santa Barbara Channel, by Lorenzo G. Yates. 



Dr. Daniel Kirkwood, the eminent astronomer, formerly Pro- 

 fessor of Mathematics of the Indiana University, has taken up 

 his residence in Riverside, California. Dr. Kirkwood is proba- 

 bly best known for his explanation of the rings of Saturn and 

 the distribution of ihe minor planets or asteroids between Mars 

 and Jupiter. 



The Wright & Newton electric microscope, lor the projection 

 of microscopic sections of rocks, minerals, plants and animals, 

 was exhibited at a meeting of the Western Society of Naturalists. 

 A section of the fibro- vascular bundle of the pumpkin was 

 shown under a magnification of about lo.ooodiameters, the large 

 pitted vessels appearing about three feet in diameter; Nuclei of 

 the root tip ot the bean were shown three inches in diameter. 



