12^ 
Records of ihe Geological Survey of India. 
[vOL. XIII. 
The boring was commenced on tbe 30tli October 1878, and tlie present 
The water and its dis- water-bearing stratum was reached on the 13th February 
charge. 1879, since which time, with the exception of a few days 
of gradual rise, the flow has continued at the same height and rate of discharge. 
The water has a temperature of 34'30 C. or 93*74 F.; it is rery clear, with 
a faint bluish-green tinge, and has a slight chalybeate taste. A strong sul¬ 
phurous odour is given off; and the usual vegetable scum is formed on the 
surface and floats away. It is drunk freely by the natives, and it boils ve¬ 
getables perfectly. 
The following tabidar section (3) is compiled from one supplied to me by 
Mr. Carriol and from another table given in the Proceed¬ 
ings of the Madras Grovernment, Revenue Department.! 
In this table also, I have attempted a grouping of the beds according to 
their sandy and clayey constitution:— 
Boring section. 
Taljle 3.—The Boring in the Jardin d’Acclimatation. 
Xo. of beds accord- 
ingr to official 
table. 
Arbitrary group¬ 
ing of Mr. King. 
Bros, 
Thickness of beds 
in meters. 
Progressive thick¬ 
ness in meters. 
Remarks. 
Surface soil 
1-33 
1'33 
30tb Oct. 1878. 
1 
Sand mixed with yellowish clay 
O'75 
2-08 
2'80 M., waterl-evel of 
suiTonnding wells. 
Clay mixed with clear grey sand 
0-35 
2-93 
3'60 M., mean sea-level. 
A 
3) 
Argillaceous sand, clear gi-ey 
1-40 
4-33 
4\ 
Coarse sand, bluish, containing small 
0-30 
4-63 
pebbles. 
5 
Sand, clear grey, fine, and very fluid ... 
1-37 
6-00 ' 
6 
Coarse sand, bluish, small pebbles 
0-15 
f>'15 
7 
Coarse sand, bright grey ... 
0-25 
6'40 
8 
Coarse sand, bluish, containing small 
0-30 
6-70 
! Bj 
pebbles. 
9 
Coarse sand, bluish, small pebbles, debris 
0-35 
7'05 
of ‘ charcoaV and decayed wood. 
10 
Coarse sand, bluish, galls of black plastic 
0-35 
7-40 
clay, and decayed wood. 
11 
Sand, very fine, bluish 
0-15 
7*55 
12 
Coarse sand, blackish, mixed with black 
0-60 
8-15 
/ 
plastic clnv. 
.\t 10'24 M., first rise 
of water-level. 
13 
C 
Black clay and fine sand ... 
2-59 
10-74 
! 7tli Jnh’ 1870, No. l lOfi. See Appendix 1. 
