CONTENTS OF No. 260.—New Series. 
MEMOTRS : PAGE 
On the Classification of Actiniaria. Part II. Consideration of the whole 
group and its relationships, with special reference to forms not 
treated in Part I. By T. A.StEPpHENSoN, M.Sc., University rae 
of Wales, Aberystwyth. (With 20 Text- euros) . : 3 493 
The Development of the Sea Anemone Bolocera tue diae(Johnst. ) 
By Prof. Jamrts F, GEMMILL, cate te College, Dundee. (With 
Plate 22) . A ‘ : : . 577 
Observations on the shape of ‘hs Baalars ae its ‘Datereainn tart 
By CHRISTIAN CHAMPY, Professeur agrégé a la Faculté de Médecine 
de Paris, and H. M. CARLETON, Demonstrator in Histology, Uni- 
versity of Oxford. (With Plates 23, 24, and 11 Text-figures) . . 589 
On the calcium carbonate and the calcospherites in the Malpighian 
tubes and the fat body of Dipterous larvae and the ecdysial elimina- 
tion of these products of excretion. By D. Keriin, Sc.D., Beit 
Memorial Research Fellow. (With 5 Text-figures) : : . 611 
The Early Development of the summer egg of a Cladoceran (Simo - 
cephalus vetulus). By H. GRAHAM Cannon, B.A., Demon- 
strator in Zoology, Imperial College of Science, South Kensington. 
(With Plate 25 and 1 Text-figure) . : ; : : : . 627 
Studies in Dedifferentiation. II. Dedifferentiation and resorption 
in Perophora. By JuLiAN 8. Huxiey, New College, Oxford. 
(With Plates 26-28 and 1 Text-figure) . F , F : . 648 
Review: The Microtomist’s Vade-Mecum . : : : : . 699 
Title, Contents, Index. 
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