38 



should be laid out, and the gangs so divided that each man 

 shall work with certain tools — one with a spade for the top 

 soil, another with a pick, and another with a shovel, to throw 

 out the loosened earth ; beginning at the lower end, and each 

 following the other, deepening the ditch layer by layer, until 

 it has the required depth ; the relative expertness of the men 

 deciding which tools they shall use. Trial drains should be 

 run at each separate locality, to ascertain the depth at which 

 the water oozes from the ground into the ditches, thus deter- 

 mining the depth of the drains. It is probable that, in some 

 instances, there will be required small brick cylindrical drains, 

 to withstand the rush of water at certain seasons of the year — 

 the effect of which will be lessened as the portion of the city 

 adjoining the park is built upon. 



Upon the plan which has been prepared has been traced 

 the principal streams, with the connections of artificial drains 

 deemed necessary to the thorough drainage of the ground. 

 The positions of these drains will be governed by circum- 

 stances ; but the general system, as laid down, will remain 

 essentially the same. At some points the drains will be further 

 apart; at others, perhaps, nearer together. It is believed, how- 

 ever, that the scheme covers the maximum amount of expense 

 that will be required for this purpose. 



Whether the work should be done by contract or day's labor 

 could be very well decided by letting a small portion of the 

 ground by contract, as an experiment, while a similar portion 

 is undertaken by day's work ; the result will soon determine 

 the relative cost of each. Any attempt to arrive at a calcula- 

 tion in any other way would be absurd. 



The number of tiles required, as estimated by the plan, will 

 be — 



2 inch, 146,300, costing (delivered at the dock), $2,194 50 



u " " 1,919 35 



" " " 1,431 15 



u u « 444 50 



" " " 1,190 40 



3 



« 



83,450, 



u 



4 



u 



30,450, 



a 



5 



u 



6,350, 



a 



6 



a 



12,400, 



a 



Total $7,179 90 



It is possible that a contract can be made to make and lay 



