i40 .TouknaL of conCHoi.ogV, vol. 13, no. 5, JanUarV, i^tt. 



material he was working at to the " Challenger " office, but Sir C. 

 Wyville Thomson's urgent representations induced him to resume his 

 studies in part, though he limited his investigations to the ^Gastero- 

 poda and Scaphopoda — about 1,300 recognisable species in all. 



The results of his labours appeared in the fifteenth volume of the 

 "Challenger" series in 1S86, and as an illustration of the thorough- 

 ness of his methods it may be mentioned that he worked at the 

 Museums of Paris, Berne, and Geneva, as well as at the British 

 Museum, before the Natural History portion was moved to South 

 Kensington. 



In 1 89 1 he was President of the Conchological Society, and in 

 1892 the University of Edinburgh conferred upon him the degree 

 of LL.D. 



Of the nature of Dr. Watson's work there is only one opinion. 

 His descriptions, at times almost too detailed, are excellent, and he 

 spared himself no trouble in their preparation. He was personally 

 known for many years to one of the writers, who must bear witness 

 to his pleasant and friendly amiability. 



For nearly twenty years he spent part of the summer in Switzer- 

 land, especially in the Rhone Valley, and his favourite haunt was Bel 

 Alp, where he did much climbing and botanising, and fraternised 

 with such men as Bishop EUicot, Edward Whymper and Prof Tyndall. 



He contributed the following three papers to the Jou7-nal of 

 Conchology : — 



Circe versus Gouldia (vol. 3, p. 299). 



The Marine Mollusca of Madeira (vol. 6, p. 365). 



The Relation of the Land and Freshwater Mollusca of the Madeiran 

 Islands to Those Known Elsewhere (vol. 7, p. i). 



The following is believed to be a complete list of his other writings 

 on conchology : — 



A. — On the Great Drift Beds with Shells in the South of Arran. — 

 Trans. Roy. Soc. Edinburgh, 1864, xxiii., pp. 523-546. 



B. — On the Marine Origin of the "Parallel Roads" of Glen Roy. — 

 Phil. Mag., 1865, XXX., pp. 452-3. 



c. — Notes on the Boulder-Clay at Greenock and Port Glasgow. — 

 Proc. Roy. Soc. Edinburgh, 1866, v., pp. 258-261. 



D. — Notes on Dredging at Madeira. — Brit. Assoc. Reports, 1871, 

 xli., p. 242. 



E, — Oh some Marine Mollusca from Madeira, including a New 

 Genus ( Chascax) of the Aliiricidce; a New Euliina [E, paivensis) ; 



I He used the term Gasteropoda as employed by Cuvier, it being equally correct as 

 Gastropoda, which has found general acceptance. 



