I 



List of the Contributors. vii 



Haedmait, Edward T., F.C.S. page. 



Further Eesearelies on tlie supposed Substitution of Zinc for 



Magnesium in Minerals, 146 



Preliminary Report on Soundings taken in Lough. Gill, Sligo, 473 



Habdman, Edwaed T., F.C.S. ; and Hull, E., F.R.S. 



On Hullite, a hitherto undescribed Mineral ; a Hydrous Sili- 

 cate of peculiar composition, from Carnmoney Hill, County 

 Antrim, with Analysis, ....... 161 



Haet, Heney Chichestee. 



On the Botany of the Galtee Mountains, Co. Tipperary, . 392 



Report upon the Botany of the Maegillicuddy's Reeks, County 



Kerry, . . . . . . . . . . o73 



Notes on the Flora of Lambay Island, 670 



Flora of the Mountains of Mayo and Gralway, . . . 694 



Kane, "W. F. de Y., M.A. 



Report on the Entomology of certain Districts in Ulster, . 784 



Haughton, Rev. Samtjel, M.D. Dubl. ; D.C.L. Oxon. 



An Easy Mode of obtaining the complete Differential Equa- 

 tions of Motion of an Ocean surrounding a Solid Nucleus, 

 and subject to any Disturbing Forces (the Nucleus itself 

 revolving on a Fixed Axis) ; without Calculation or Trans- 

 formation of Co-ordinates ; from simple Geometrical and 

 Mechanical Priaciples. 



On the Effects of the Lunar and Solar Tides in Lengthening 



the Duration of the Sidereal Day, . . . . . 605 



Haughton, Rev. Samtiel, M.D., D.C.L. ; and Reynolds, Emeeson 

 J., M.D. 



Experiments made to determine the " Drag" of Air upon Air 



and Water upon Water at Low Velocities, . . . 277 



Hennessy, Heney, F.R.S. 



On Experiments to Determine the Influence of the Molecidar 

 Condition of Fluids on their Motion when in Rotation, and 

 in Contact with Solids. Report, Part I., . . . 55 



Hodges, F., Fallow Inst. C.F.C.S. (Berlin), Zurich. 



Report on an Investigation of the Character and Chemical Con- 

 stitution of the Fibre of the Flax Plant (Plates xiv. & xv.), 460 



Hull, Edwaed, LL.D., F.R.S. — [See Haedman, Edwaed T.) 



HuTCHiNSOJsr, Christophee Claeke. 



On Schutzenberger's Process for the Volumetric Estimation of 



Oxygen in Water, 135 



[See also M'Alpine, Aechibald N.) 



