246 
Megacarpea, 134; *on a monstrous 
flower of Sarracenia, 134; *on grafted 
roots of mangold-wurzel, 134; *on 
the growth of the stems of tree-ferns, 
134, 
Moral idea, C, 8. Wake on the origin of 
the, 158. 
Morgan (HE. D.) on “ Travels beyond 
three Seas, by Athanasius Nikitin, 
Merchant of Tver, 1466-1472,” 177. 
(W.) on an improved tuyere for 
smiths’ forges, 228, 
Morrison (G. J.) on the adoption (for 
the general purposes of navigation) of 
charts on gnomonic projection instead 
of on Mercator’s projection, 42. 
Mosses of the north-east of Ireland, S. 
_ A. Stewart on the, 134. 
Motion, H, Hart on some conversions of, 
17. 
*—, W. Hayden on approximate 
parallel, 18. 
Murphy (J. J.) on M‘Lennan’s theory of 
“ Primitive Marriage,” 156. 
Myriothela phrygia, Prof. Allman on 
some points in the histology of, 135. 
Nachtigall’s (Dr. G.) explorations in 
Africa (1869-74), HE. G. Ravenstein 
on, 175. 
“ Natural Mythology,” and some of the 
incentives to its adoption in Britain 
and Ireland, J. 8. Phené on, 158. 
Negretti (H.) on Negretti and Zambra’s 
patent recording and deep-sea ther- |} 
mometer, 45, 
Neyille (J.) on the means adopted for 
the improvement of the outer navi- 
gable channel of Dundalk Harbour, 
228; on anew construction for finding 
the vertical shearing-stress and the 
point of greatest bending-moment in 
a beam loaded in any way, 229. 
Newman (Prof. F. W.) on the calcula- 
tion of exponential functions, 19. 
Newton’s construction for the disturb- 
ing force exerted by a distant body, 
Prof. Curtis on certain applications of, 
10. 
Nicholson (Dr. H. A.) on Favistella stel- 
lata and Fuvistella calicina, with notes 
on the affinities of Favistella and allied 
genera, 89; description of species of 
Alecto and Hippothoa from the Lower 
Silurian rocks of Ohio, with a de- 
scription of Azlopora arachnoidea, 
90; descriptions of new species of 
Polyzoa from the Lower and Upper 
Silurian rocks of North America, 90 ; 
descriptions of new species of Cysti- 
REPORT—1874. 
phyllum from the Devonian rocks of 
North America, 91; and W. H. Ellis 
on a remarkable fragment of silicified 
wood from the Rocky Mountains, 
88, 
*Nicol’s prisms, W. Ladd on the con- 
struction of large, 26, 
Nitric acid, P. Braham and J. W. Gate- 
house on the dissociation of, by various 
means, 55. 
*Norman (G. W.) on the future of the 
United States, 211. 
North Polar region, Rear-Admiral §. 
Osborn on the routes to the, 170. 
Oases of the Lybian Desert, Dr. G. 
Schweinfurth on the, 173. 
*Ogilvie (T. R.) on the estimation of 
phosphoric acid as pyrophosphate of 
magnesia, 66. 
O'Hagan (Rt. Hon. Lord), Address by, to 
the Section of Economic Science and 
Statistics, 185. 
Ohm’s law, Dr. A. Schuster on, 30. 
—, geometrical illustrations of, by 
Prof. G. C. Foster, 28. 
*Olefines, Prof. M. Simpson on the 
chlor-bromides and brom-iodides of 
the, 67, 
*Opium derivatives, Dr. C. R. Wright 
on some, 67. 
Ordnance Department, a communication 
from the, on surveys in Ireland, 184, 
Origin and characteristics of the people 
in the counties of Down and Antrim, 
Rey. Canon Hume on the, 153. 
Osborn (Rear-Admiral S.) on the routes 
to the North Polar region, 170. 
*Ozone, Prof. Redfern on the effects of, 
on the animal economy, 143, 
Palestine, Lieut. R. Conder on the sur- 
vey of, 178 
Partitions and derivations, J. W. L. 
Glaisher on, 11. 
Pastorelli (I’.) on a gymbal-swung rain- 
gauge, 37. 
Penal legislation, Rev. J. T. Burt on the 
principles of, 192. 
*Pentastoma, Prof. Macalister on two 
new species of, 137. 
*Peoples between India and China, Sir 
G. Campbell on the, 145. 
Perchloric acid, T. Fairley on, 58. 
Permian breccias of the country near 
Whitehaven, R, Russell on the, 92. 
Peroxide of hydrogen, T, Fairley on 
jog hypochlorous acid, &c., and, 
| Peru, T, J. Hutchinson on the commer- 
