PAllT 2.] 
metres. This fresh gush of water, like the one which preceded it, made the sand flow back from 
•50 of a metre to 1-20 metres into the interior of the tube. The work continued by means 
of the small soupape k boulet, and we then attained a depth of 79’34 metres. 
At length, on the 13th February, after penetrating a stratum of very fine saird mixed 
with grits and remains of decayed wood, the hydrostatic level which had remained at about 
the level of the ground rose to ■62 of a metre, and continued under the impetus given to the 
work to rise gradually to I'dS metres in twenty-nine days. This is the jet we now have. 
The water is very clear, does not taste bad, and boils vegetables perfectly. It marks 98 on the 
hydrometer. Its temperature is 
The discharge of water was, on the 13th February, at 10 A.M., 140 litres; in the evening 
it was 268 litres; and to-day, the 20th March, it has reached to 666 litres a. minute—a 
quantity more than sufficient to irrigate the Jardin d’Acclimatation. After several attempts 
to extract the bottom of the pipe, it was discovered that the force of the rising water brought 
up sand to the surface, and that the detachment had been eflected spontaneously. The boring 
has reached to 79'52 metres. It took 89 days of 10 hours each of actual work. This gave 
an average per diem of = '89 daily. 
The following have been the general expenses :— 
F. c. 
F. C. 
Construction of the crane .... 
1903-52 
■ 2570-55 
Transport and setting up, &o. 
662-03 , 
Value of 80m of pipes .... 
2340-00 ■ 
• 3420-00 
Expenses of packing, freight and insurance 
1080-00 . 
Hire for driving in the pipes 
1630-12 
1630-12 
Total . . 7620-67 
2570-55 
5050'12 
If from thus sum the cost of the crane be deducted, which was Fr. 2oi0'55, the real cost 
of the well will be only 50o0T2. 
This makes the cost of each running metre in boring =63f. oOo. 
This expenditure is really very small when we take into consideration the dreadful 
famine which raged through this country in 1877 and 1878 in consequence of want of water. 
One can now assert with certainty after the success achieved in boring three wells within 
a radius of about 800 metres of each other, and at depths varying from 38-53 to 79-52 
metres, that if the calamities which famines involve on the Coromandel Coast are not com¬ 
pletely overcome, their disastrous consequences can be considerably mitigated by sinking arte¬ 
sian wells. 
This being the first attempt at boring ta such a great depth in this country, I have thought 
that, from a scientific point of view, it would he useful to have in France a complete collec¬ 
tion of geological specimens of the strata penetrated. With this view, I have caused a 
case containing an extract from the register of borings with all the specimens and four 
bottles of the water now issuing from the well to he deposited in the Magasin Geudral. 
I think M.TCrdonatenr that this case should be forwarded to His Excellency the Minister 
of Marine and Colonies, who would probably make it over either to the School of Roads and 
Bridges or the School of Mines. 
(Signed) A. CARRICL, 
LTngenieur, Colonial, 
Chief du Service des Points et Chanssees. 
Appendix 1. 
Id.5 
