72 editor's notes. 



Lacaze-Duthiers, H. de.— Morphologie de Tridacna elongataet cle Hippopus. 



Arch, de Zool. exp. et gen., 1902 (3 ser.), T. x, pp. 19—212, pis. v— x. 

 Boutan, I La Detorsion cliez les Gasteropodes. Ibid., pp. 241 — 268, 



pi. xi. 



EDITOR'S NOTES. 



We have to thank many of our .subscribers, both at home and abroad, for 

 their kind congratulations and expressions of goodwill on the appearance of 

 the first part of another volume. 



The collection of MoUusca made by the late Dr. Francis Arclier, of Liver- 

 pool, and his son, the late Surgeon-Colonel Archer, has recently been presented 

 to the University of Birmingham. 



We understand that the well-known J. T. ]\[arshall Collection of British 

 shells has passed into the hands of Mr. J. B. Brockton Toudin, of Chester. 



Messrs. Sowerby & Fulton have fa\ourcd us with a copy of their latest 

 (April, 1903) Catalogue of Cephak)poda, Pteropoda, Gastropoda (Marine and 

 Freshwater), and Scaphopoda, enumerating nearly 4,000 species. As in 

 their previous catalogues, the names are printed in double columns, with wide 

 margins each side, so that it may serve as a check-list also. Museum 

 curators and collectors generally will find it both of use and value. 



