Records of ike dlcvloficul Snroey tf India. 
28:J 
[vOL. XIII. 
miltcc may Ijc well foniuleil—tliat, cxec'iit in the proscrilicd gi’niiml, security can l)o insured l)y 
liroper precautionary measures. Mr. Uldliam has e,\pressed tile same opinion. 
in tlic 30tli Sej)teinlier numher of Nature, a-propos of tlie Naiui Tal catastroplie, tlierc is a 
pici nre.sipic desei'Iption of laud.slips in general. Tlio writer is evidently tliorouglily informed 
upon tile sul>ieot lie iriaits of, idtlunigli grievonsiy in error regarding the geological condition 
of Naini Tal, wliieh is doscrlhed as on the terti.ary rocks. Thi.s mistake is unnceonntahle; for 
llio place is clearly shown on our geological sketch-inai) of India .as inside the Snh-Hiinalayan 
houndarv. From the foregoing notice it will he plain that tho Naini 'Tal slij) cannot he classed 
with any of Ihc iiarticnhir cases mentioned in Natnrr. I have seen no fact to suggest that there 
is any jiredisposing plane of stratification connected with these slips. 'The contrary may, indeed, 
he affirmed; for althongh the general dip of the strata is stated to he south-westerly, tho fre¬ 
quent contortion tho.so slates have undergone almost ferhids the supposition of a, continuous 
surface of any extent in a ti.xed direction, such as is inqilicd hy tin action in question. 
'Tlio Naini T'al landslip of the 18th Septemhor wais' in fact, except on the score of mischief, 
a .-umiiarativcly small alTaii, considerably less iu inaguitndc, is mentioned in Mr. OldhanTs paper- 
than several others that occurred at the same time iu the Krmanu hills. 
H. li. MUDLICOTT. 
DONATIONS TO THE MUSET’M. 
A rare collection of I'o.ssils (later tertiary, and post-tei'tiarv) froni tlie Mahraii Coast and 
l’i‘r,s!an Gulf. 
LtKrr, AirmuR W- SriRin!, l.ite I. N, 
Iron pyrites from Bagota and the Seinri Iliver, Bundelkliand 
Su]i(iEoN-M,ij'(jit .1. P. Stiiatton, M.D. 
PutiiicaJ Apvnt, lliiiidcllltaiid. 
'I'wo speeimons of Murehisonitc (orlhoclase) from the gneiss at llczvada, Kistmi. 
T. Vanst.ia EiiN, Esq. 
Specimens of rocks, fossils, and wood from the submerged forest in the excavations for 
the I’l'ince’s Dock, Bombay. 
G. OiurisTON, Esq., 
licsidiiit Engineer. 
ADDITIONS 'TO THE LIBRIBY 
Ekojj 1st .Idey to 30tu SErTH.ArnEii 1880. 
'J'ltles of Hooks. Eonors. 
B. 1 .LL, V.—On .Splieroidal joinling in Metamorphic Kooks in India and elsewliero, producing 
a structure resembling glacial “ Itoebes Moutonnees ” (1880), Svo, put., Dublin. 
'The AuTJioii. 
Ball V.—On the evidence in favour of the bilief in (lie existence of Floating Ice in India 
during the deposition of the 'Talohir (Permi.iu or I’crmo-Triassie) Ibieks (1880), 
Svo, plit,. Dublin. 
The Autuoe. 
