CO'NT'ENTS— continued. 



PAGE 



XXXVII. — Speculations on th.e Source of Meteorites. By Robeet S. Bail, 



LL.D., F.R.S., Royal Astronomer of Ireland, 227 



XXXVIII. — An Easy Mode of obtaining tlie complete Differential Equations 

 of Motion of an Ocean surrounding a Solid JN^ucleus, and sub- 

 ject to any Disturbing Forces (the Nucleus itself revolving on 

 a Fixed Axis) ; witbout Calculation or Transformation of 

 Co-ordinates ; from simple Geometrical and Mechanical Prin- 

 ciples. By the Rev. Samuel Hatjghton, M.D. Dubl. ; D.C.L. 



Oxon., 231 



XXXIX. — On a Cylindrical Mass of Basalt existing at Contbam Head, 

 Moon Bay, Coast of Antrim. By Joseph P. O'Reillt, C.E., 

 Central School, Paris ; Professor of Mining and Mineralogy, 

 Royal College of Science, Ireland. (With Plates 8 and 9), . 237 

 XL. — Notes of some Observations on Nitrification. By Edmund W. 

 Davy, A.M., M.D., Professor of Forensic Medicine, Royal 



College of Surgeons, Ireland, &c., 242 



XLI.— On Recent Researches Respecting the Minimum Visible in the 



Microscope. By C. E. Bueton, B.A., 248 



Minutes of Proceedings for April 14, 18, and 28, 1879, . . . . . 75 to 110 



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