306 FORM NEW WATERED-MEADS. [MAY. 



rally make it necessary to conduct the water by a 

 line of fields diagonally across the slope of the 

 country. To illustrate this,, reference may be had 

 to the annexed Plate. 



Here (l), is the river ; (2), the grand carrier; 

 (3), the field first watered; (4), the field watered 

 after the first ; (5 and 6), ditto, in succession ; 

 (7, 9), ihe prise d'eau ; (8), a sluice to throw the 

 water into the field where first used ; (JO), final 

 exit of the water. But in this respect variations 

 may be as many as the forms which a tract of 

 country presents. (6), in this dragram, may be a 

 good meadow already ; in that case the water may 

 run to waste in the ditch (U), and so find its \vny 

 to the river. The main object in such a work as 

 this Calendar, is not to give a treatise on irrigation, 

 which would demand two such volumes, but only 

 to bring to the operator's recollection certain points 

 to which he ought to pay attention. 



Having watered one range of fields diagonally 

 across the space between the grand carrier and the 

 river's bed ; he may then return and work a second 

 range, and so on till he has acquired a power of 

 conducting the water to any field at pleasure ; and 

 by means of the ditches which intersect the : 

 and form the divisions of the fields, he can miss any 

 fields thai are unprofitable on comparison with 

 others, leaving them for future operations, when 

 the quantity of water, and the effect of the irri- 

 gation shall be better known. But while he thu 



