VL 
Contents. 
PAGE 
On the BIoocl of Myxine. By Professor D’Arcy W. Thompson, . 221 
On the Larynx and Stomach in Cetacea. By Professor D’Arcy W. 
Thompson, ........ 221 
On Transition Resistance at the Surface of Platinum Electrodes, 
and the Action of Condensed Gaseous Films. By W. Peddie, Esq., 
B. Sc. (Plate VII.), 221 
Researches on the Problematical Organs of the Invertebrata — 
especially those of the Cephalopoda, Gasteropoda, Lamelli- 
branchiata, Crustacea, Insecta, and Oligochseta. By Dr A. B. 
Griffiths, E.R.S. (Edin.), F.C.S. (Bond. & Paris), Principal, and 
Lecturer on Chemistry and Biology, School of Science, Lincoln; 
late Lecturer on Chemistry, Technical School, Manchester, &c., . 230 
The Nephridia of Lanice conchileqa , Malmgren. By J. T. Cunning- 
ham, Esq., 238 
On a Furnace capable of melting Nickel and Cobalt. By J. B. 
Readman, Esq., ....... 240 
On the Fossil Flora of the Radstock Series of the Somerset and 
Bristol Coal Fields. Concluding Part. By R. Kidston, Esq., . 240 
On the Discharge of Albumen from the Kidneys of Healthy People. 
By Professor Grainger Stewart, M.D., .... 240 
The Salinity and Temperature of the Moray Firth, and the Firths of 
Inverness, Cromarty, and Dornoch. By Hugh Robert Mill, D.Sc., 
Scottish Marine Station. (Plate VIII.), .... 250 
On the Presence of Bacteria in the Lymph, &c., of Living Fish and 
other Vertebrates. By J. C. Ewart, M.D., Regius Professor of 
Natural History, University of Edinburgh, . . . 262 
On the Origin of the Great Alpine Lakes. By Professor Sacco, 
University of Turin, ...... 271 
On the Minute Oscillations of a Uniform Flexible Chain hung by 
one End ; and on the Functions arising in the course of the In- 
quiry. By E. Sang, Esq., LL.D. (Plate IX.), . . . 283 
Note on the Biological Tests employed in determining the Purity of 
Water. By A. W. Hare, Esq., M.B. Edin. (Plates X., XI.), . 306 
Alternants which are Constant Multiples of the Difference-Product 
of the Variables. By A. H. Anglin, Esq., M.A., . . .313 
Glories, Halos, and Coronae seen from Ben Nevis Observatory. 
Extracts from Log Book. By R. T. Omond, Esq. Communicated 
by Professor Tait. (Plate XII.), ..... 314 
Thermal Conductivity of Iron, Copper, and German Silver. By A. 
C. Mitchell, Esq. Communicated by Professor Tait, . . 327 
On the Probability that a Marriage entered into by a Man of any 
Age, will be Fruitful. By T. B. Sprague, Esq., M.A., . . 327 
On the Nephridia of Hirudo medicinalis. By Dr A. B. Griffiths, 
F.R.S.E., F.C.S. (London & Paris), Principal, and Lecturer on 
Chemistry and Biology, School of Science, Lincoln, . . 346 
