152 Scientific Intelligence. 



practical beekeeper, for whom this book is especially designed. 

 There are complete directions for the management of bees and 

 the marketing of their products, together with a thoroughly 

 scientific account of the bee's anatomy, life history, habits, and 

 diseases. The book will serve a much wider sphere of usefulness, 

 however, than merely filling the needs of the bee culturist, for it 

 contains such a wealth of reliable information concerning these 

 wonderful insects that it is likely to become a classic for the 

 biologist and entomologist as well. w. r. c. 



Obituary. 



Dr. Arthur Williams Wright, professor of experimental 

 physics in Yale University from 1887-1906, died at his home in 

 New Haven on December 19 in the eightieth year of his age. A 

 notice is deferred till a later number. 



Dr. Orville Adelbert Derby, the geologist, died suddenly 

 at Rio Janeiro on November 27 at the age of sixty-four years. 

 He was instructor in geology at Cornell University from 1873 

 to 1875, when he went to Brazil to become connected with the 

 Geological Survey. To this work he devoted his life, being made 

 later the head of the Survey. His investigations were of great 

 value both in geology and mineralogy ; many of them were pub- 

 lished in the pages of this Journal. 



Dr. Charles Frederick Holder, the naturalist, at one time 

 assistant curator in the American Museum of Natural History, 

 died at his home in Pasadena on October 10 at the age of sixty- 

 four years. 



Sir Henry Enfield Roscoe, the veteran English chemist, 

 died on December 19 in the eighty-third year of his age; few 

 men have attained an equal eminence in science and in public life. 



Dr. H. Charlton Bastian died on November 17 at the age of 

 seventy-eight years. He was an authority on nervous affections 

 and had made a special study of the nervous system of the brain. 

 The investigations and speculations for which he will be specially 

 remembered deal with origin of life, as he believed from non-liv- 

 ing elements, and with the doctrine of " heterogenesis." 



Dr. C. J. Bouchard, professor of pathology in the University 

 of Paris, died in November at the advanced age of seventy-eight 

 years. 



Dr. R. Assheton, the English zoologist, died on October 24, 

 at the age of fifty-two years. 



Sir Arthur Rucker, principal of the University of London 

 from 1901 to 1908, and earlier professor of physics at the Royal 

 School of Science, South Kensington, died on November 1 at the 

 age of sixty-seven years. 



Dr. Gaston Vasseur, professor of geology in the University 

 of Marseilles, died early in November at the age of sixty years. 



