lv CONTENTS. 



Page 



III. Cobbold (T. S.), New Species of a Trematode Worm, with 



observations of the Structure of Cercarice, . . 9 



IV. Dassauville (P. A.), Notice of Gray Phalarope (Phalaropus 



lobatus), ...... 9 



V. Heddle (M. F.), Analysis of Datholite, . .9 



February 28, 1855. 



I. Miller (EL), on the late Severe Frost, . . .10 



II. Miller (H.), on the Silurian and Old Red Floras of Scot- 

 land, . . . . . • .14 

 III. Macdonald (Professor), on the Homology of the Vertebrate 



Skeleton, . . . . . .14 



March 28, 1855. 



I. Rhind (Wm.), on some Circular Mounds covered with 



Metallic Slag in Morayshire, . . . .14 



II. Rhind (Wm.), Contributions to the Hydrology of the British 



Islands, . . . . . .15 



III. Peach (Charles W.), on the Discovery of Calcareous Zoophytes 



in the Boulder Clay of Caithness, . . .18 



IV. Murray (And.), on the Bark-boring Woodpeckers of Cali- 



fornia, . . . . . .13 



V. Heddle (M. F.), Analysis of Pectolite and Table Spar, . 18 

 VI. Smith (J. A.), Notice of Gadwall Duck (Anas strepera), and 

 of the Smew (Mergus albellus), and of the Glaucous Gull 

 (Larus glaucus), . . . . .18 



April 25, 1855. 



I. Fleming (Professor), Remarks on Rain-gauges, . .18 



II. Murray (And.), on Electrical Fishes, and Description of 



Malapterurus Beninensis. (With a Plate), . . 20 



III. (1.) Murray (And.), New Coleoptera from Quito, . . 21 

 (2.) Murray (And.), Coleoptera taken in the Camp before 



Sebastopol, . . . . . .21 



IV. Goodsir (Professor), Anatomical Details of Malapterurus 



Beninensis . . . . . .21 



V. Lowe (W. H ), on Monitor pulcher, Julus maximus, and 



other specimens received from Old Calabar, . . 22 



VI. Heddle (M. F.), Analysis of the Morayshire Slag exhibited 



at last Meeting by Mr W. Rhind, . . . 22 



VII. Peach (Ch. W.), Notice of the Discovery of Fossils in the 



Limestones of Durness, Sutherlandshire, . . 23 



VIII. Smith (J. A.), Notice of the Water Rail (Rallus aquaticus) 



taken in British Channel, . . . .24 



