182 On Rain Guagcs and Registry of River Freshes. [No. 80. 



Estimate for a Rain Guage. 



ft. ins. ft. ins. ft. ins. c. ft. ins. 



Outer wall below, 14 6 by 1 1J by 3 0 ..49 0 



Do. do. above, 16 0 by 0 9 by 1 0 ....12 0 



Inner do, 2 6 by 0 9 by 3 0 . . 5 7£ 



Floors of cisterns, 4 0 by 2 6 by 0 4|. . . , 3 9 



Total Brick work. . _70 „ 4£ 



ft. ins. ft ins. sq. ft. 



Plastering 19 0 by 4 0 76^ 



7 0 by 3 0. . . . 21 Total 107 Sq. ft. 

 4 0 by 2 6 lo 1 



Rs. A. P. 



70 4 i Cc. ft. Brick work at 2 annas 8 12 9 



107 Sq. ft. Plastering at 2\ Rs. per Sq 2 11 0 



Scales and Sundries • 2 8 3 



Total Rs. ..14 0 0 



Rales for erecting and recording the Rain guages, intended 



for translation into the native languages. 



The cistern should be built in a spot from which every 

 building and large tree is distant at least 60 feet. It must 

 not be placed on a hill or mound nor yet in a hollow, but on 

 ground of the general level. It should be near to a guard or 

 at any rate in some spot where it will not be mischievously 

 injured, and where it will be convenient for the inspection of 

 the person whose duty it is to make the observations. The 

 cistern should be well built of brick in chunam (allowing for 

 the thickness of plaster), or of cut stone if it can be done 

 within the Estimate. The walls must be perfectly upright 

 and there should be no error in the dimensions. The scales 

 should be fixed in the masonry. They may be of wood or 

 marked in the plaster, or cut in stone or metal, but of what- 

 ever material, they must be exact.* No wall more than 2 

 feet high is to be built around the cistern to protect it, but a 

 ditch or a hedge of thorns, leaving space for one person to go 

 and look at the guage will be useful. The observations 

 should be taken every day and as nearly as may be at the 

 same hour in the morning. 



