250 Scientific Intelligence. 



that time amounted to £1535. It is to be hoped that the scien- 

 tific men of this country may not be backward in doing their 

 share. Donations may be sent to the treasurer, Sir J. Lubbock, 

 or the bankers, Messrs. Robarts, Lubbock & Co. (15 Lombard 

 street, London, E. C), or to the honorary secretary, Prof. G. B. 

 Howes (Royal College of Science, South Kensington, S. W.). It 

 has been decided that the memorial shall take the form of a 

 statue, to be placed in the British Museum of Natural History, 

 and a medal in connection with the Royal College of Science, and 

 that the surplus be devoted to the furtherance of biological sci- 

 ence in some manner to be hereafter determined by the committee, 

 dependent upon the amount collected. 



OBITUARY. 



Charles Wachsmuth died in Burlington, Iowa, on February 

 7th, aged sixty-seven. Dr. Wachsmuth has for many years been 

 working on the classification of the fossil and recent Crinoidea 

 and is well known to all paleontologists by the admirable 

 "Revision of the Palaeocrinoidea" prepared by himself and his 

 constant friend and collaborateur, Mr. Frank Springer of Las 

 Vegas, New Mexico. This work was issued in parts in the Pro- 

 ceedings of the Academy of Natural Sciences in Philadelphia ; 

 Part 1 appearing in 1879, Part II in 1881 and Part III, " A 

 discussion of the Classification and relations of the Brachiate Cri- 

 noids and conclusion of the generic descriptions," in 1885 and 

 1886. At the time of his death the authors had in press an illus- 

 trated monograph on " The North American Fossil Crinoidea 

 Camerata," which is being published by the Museum of Compara- 

 tive Zoology, Cambridge, Mass. In a letter from Mr. Springer 

 we are advised that all correspondence connected with the publi- 

 cation of this monograph should be addressed to Mr. Frank 

 Springer, East Las Vegas, New Mexico, U. S. A. 



ERRATA. 

 In the article by Prof. A. M. Mayer in the February number, 1896. 

 Page 83, line 13 from top, for 2*12 read 2-35. 



Page 84, line 2 from top, for modulus increased, read modulus at 20° increased. 

 Page 84 and 85, for Keyser read Kayser. 



Page 85, line 4 from bottom, for the vibrations read the longitudinal vibrations. 

 Page 93, line 14 from top, for 2135 x 10 6 read 2131 x 10 6 . 

 Page 94, for moduls of glass at 40° read 748511034. 

 Page 94, under St. Gobain glass for 99-88 ") 99-76 



99-76 I , 99-53 



99-53 f 99-30' 



99-30 J 9907 



Page 103, line 22 from bottom, for renders read render. 

 Page 103, line 19 from bottom, for would have given read gives. 

 Page 103, line 12 from bottom, for equal intensity, read equal initial intensity. 

 Page 104, line 13 from bottom, for rest read rests. 

 Page 105, lines 19 and 21 from bottom, for from read between. 

 Page 105, line 17 from bottom, for Fig. 4 read Figure (3). 



