jan. — mar. 1857.] for the Provinces of Madras. £07 



thought and that the new gauge will not answer throughout every 

 monsoon, as 8*25 inches fell on the 9th October 1852, and 10*7 

 inches on the 8th October 1855. He thinks however that a few 

 gauges of the new pattern would be useful and asks for 4. 



In his second letter No. 202 dated 8th July, he suggests that 

 Mr. Bayley's improvement of dividing his measuring rod into 

 lOths should be introduced with the present gauges and points out 

 the method of using it. 



The total number of the new gauges asked for was 129, but as . 



of a quart bottle is less than that of the gauge ; the former being 

 about 3± and the latter 4-697 inches. 



The total cost including that for the tin vessels in which the 

 bottles are to be placed would amount to Rupees 360 for 180 

 gauges. 



It is far from being an uncommon occurrence to receive mis- 

 taken values of rain falls from Collectors using the pattern now in 

 use, and I have frequently to send back the returns for correction 

 month after month. The new stick suggested by Mr. Elton allud- 

 ed to in his letter of the 8th July, and which I beg leave to forward 

 for inspection is however a decided improvement, and to any one 

 giving himself the trouble to think on the subject at all, it is diffi- 

 cult to believe that wrong values can be assigned to the measure- 

 ments shown by the decimal scale. But it must be admitted that 



some of the Collectors who approved of 

 the new gauge did not mention the num- 

 bers they required, I have the honor to 

 recommend the manufacture of 180 

 gauges of the new pattern, substituting 

 however a tin vessel to receive the rain 

 fall instead of the quart bottle ; or else 

 placing the bottle in a tin cylinder so that 

 if very heavy rain fall, so as to more than 

 fill the bottle, the surplus water might 

 overflow into the tin vessel as exhibited 

 in the annexed drawing. This would an- 

 swer very well, as the external diameter 



