PART 2.] Mallei: On Tyrolodte at Gosalpur, Jahalpur Lktrid. 
99 
measure rocks, “ grey post and blue metal,” e., sandstone and dark claj^ to the 
total depth of 410 feet, without a sign of coal. We can hardly again haye 
recourse to the conjecture of a space between faulted ends of the seams. The 
one supposition that meets all the local facts is that of original limitation. 
I said above that this is the least favourable view to take, as of course if the 
interruption were only due to faulting, the recurrence of the seams could be 
counted on, w^hereas no diagnosis of the ground can do more than guess at vari¬ 
ations of original distribution. I do not think, however, that there need be any 
alarm on this score for the immediate, or even for the distant future. I cannot 
but think that there must be a great store of coal beneath the Malpi (Mulpec) 
plain, and south of it up the valley of the Sitariva. 
On Pyrolusite with Psilomelane occerrinq at Gosalpur, Jabalpur District, 
F. R. Mallet, F. G. S., Geological Survey of India. 
The existence of manganese ore at Gosalpur appears to have been known 
for a long time past, and the mineral has been in use to some little extent 
amongst native glass makers in the neighbourhood. It was first brought to 
the notice of Government by Mr. W. G. Olpherts in 187S, to whom we are 
indebted for specimens subsequently received. Lately, the Deputy Commissioner, 
Colonel Playfair, has again called attention to this ore and asked for infor¬ 
mation regarding it. Within the last month Mr. Medlicott has visited the 
locality, and reports upon the deposit as follows :— 
“ The sections available for examination were very poor indeed, only shallow 
holes, 5 or 6 feet deeji, along an iivegular line some 20 yards in length, on the 
outskirts of the village of Gosalpur, at the base of the low ridge on which the 
dak bungalow stands. The well in the village, from Avhich also the ore was 
obtained, is at a slightly lower level, about 120 yards nearly due east of the shallow 
pits, but it was not available for examination. I have, however, satisfied myself 
that the deposit is not a vein or lode, and that it has no apparent connection with 
any vein or lode in the underlying transition rocks. It is not, either, a layer or 
bed in the formation in which it occurs, which is laterite, but is h’regularly 
distributed throughout this rock in lumps of various shapes and sizes. These 
mostly have a spongy or cellular structime, but some jiieces of very compact ore, 
more or less reniform, were found. This laterite is of the older type: at least 
in the exposed sections I could not detect any palpable debi’is, which generally 
characterizes the secondary or detrital laterite. It is therefore presumable that 
the lumps of ore are innate, and that the manganese is an integral comjionont of 
the laterite in this position. The ore in the little pits is at a higher level than in 
the well, which is still in laterite at the water level, 45 feet from the surface, 
and where the ore seems to occur at any level. It is, I think, reasonable to 
conjecture some local source for such an unusual ingredient in so wide spread 
a rock as the laterite; but the underlying rocks are greatly concealed by the 
laterite itself, or by alluvium, and no vein of this mineral may be found in the 
