CONTENTS. 
xiii 
II. M'Bain (James), M.D., R.N., Remarks on some Comparative 
Anatomical Distinctions between the Skull of tlie Manatus 
senegalensis and that of a Manatee from the Bay of 
Honduras. (Specimens exhibited), . . .261 
III. Livingston (John S.), Historical Review of the State of our 
Knowledge respecting Metamorphism in the Mineral 
Kingdom, with special regard to certain recent Researches, 267 
April 24:, 1861. 
Logan (George), Memorial against Salmon Fisheries Act 
(Scotland), .269 
I. Mitchell (J. M.), Some Statements in Cuvier's " Natural 
History of Fishes," as to the Herring', shown to be 
erroneous, , ..... 269 
II. A¥right (T. Strethill), M.D., Observations on British 
Zoophytes and Protozoa : — 
(1.) On the Reproductive Elements of the Rhizopoda (Plate 
IX.); 270 
(2.) On the Reproduction of Opliryodendron, . .274 
(3.) On Dendrophyra radiata and D. erecta (nov. gen. 
etsp,), . 276 
(4.) On Lecythia elegans (nov. gen. et sp.), . . 277 
Appendix to Coinistes reticularis {Koinistes retiformis')^ 
p. 91. (Woodcut), . . . ' . . 277 
Appendix to Hydractinia, vol. i. p. 192, . . . 283 
III. Dubuc (E. W.), M.D., R.N., Notes on Deep-Sea Soundings. 
Communicated by Mr James B. Davies, . . 286 
IV. Logan (George), Further Notice of the Herring and Sprat 
Fishery of the Firth of Forth, . . . .288 
Mitchell (J. M.), exhibited Sprats with developed milt and 
roe, ....... 290 
V, Young (William S.), Notice of a Specimen of the Syngna- 
thus JEquoreus^ taken in a lobster net oiF Inchkeith 17th 
April 1861, . . . . . .290 
(Smith (John Alex.), M.D., Notes of the ^quoreal Pipe 
Fish (NeropMs jEquoreus), taken at the Isle of May), . 291 
VI. Smith (John Alex.), M.D., Crex por%ana. Spotted Crake. 
(Specimen exhibited), ..... 292 
