VI 



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Results of the Magnetic Observations at the Kew Observatory. — No. III. 

 Lunar Diurnal Variation of the three Magnetic Elements. By Lieut- 

 General Sabine, P. R.S 249 



On the Congelation of Animals. By John Davy, M.D., F.R.S., &c 250 



Letter to the President from Lieut.-Colonel Walker, R.E., F.R.S., Super- 

 intendent of the Trigonometrical Survey of India 254 



Spectroscopic Observations of the Sun. By J. Norman Lockyer, F.R.A.S. 256 



On a Crystalline Fatty Acid from Human Urine. By E. Schunck, F.R.S. 258 



On Oxalurate of Ammonia as a Constituent of Human Urine. By E. 

 Schunck, F.R.S 259 



On the Structure of the Optic Lobes of the Cuttle-Fish. By J. Lockhart 

 Clarke, F.R.S 260 



On the Laws of Connexion between the conditions of a Chemical Change 

 and its Amount. — No. II. On the Reaction of Hydric Peroxide and Hy- 

 dric Iodide. By A. Vernon Harcourt, M.A., and W. Esson, M.A 262 



On the Stability of Domes.— Part II. By E. Wyndham Tarn, M.A., Mem. 

 Roy. Inst. Brit. Ajchitects 266 



A Supplementary Memoir on Caustics. By A. Cayley, F.R.S 268 



Anniversary Meeting : 



Report of Auditors 268 



List of Fellows deceased, &c 269 



elected since last Anniversary 270 



Address of the President ih. 



Presentation of the Medals 278 



Election of Council and Officers 285 



Financial Statement 286 & 287 



Changes and present state of the number of Fellows 288 



Discussion of Tide Observations at Bristol. By T. Gr. Bunt, Esq 289 



On the Heating of a Disk by rapid Rotation in vacuo. By Balfour Stewart, 

 M.A., F.R.S., and P. G. tait, M.A 290 



On the Bones of Birds at different Periods of their Growth. By John Davy, 

 M.D., F.R.S., &c . . 299 



On Poisson's Solution of the Accurate Equations applicable to the Trans- 

 mission of Sound through a Cylindrical Tube ; and on the General Solu- 

 tion of Partial Differential Equations. By R. Moon, M. A., late Fellow of 

 Queen's College, Cambridge ^ 306 



Abstract of the Results of the Comparisons of the Standards of Leng*th of 

 England, France, Belgium, Prussia, Russia, India, Australia, made at the 

 Ordnance Survey Office, Southampton. By Capt. A. R. Clarke, R.E., 

 F.R.S., &c., under the Direction of Colonel Sir Henry James, R.E., F.R.S., 

 &c., Director of the Ordnance Survey 311 



On the Formation of Cells " in Animal Bodies. By E. Montgomery, M,D. 314 



