*;• CONTROL RECORD OP 



*v /\'** " Iniert " Pond." " Sw«(np, ■Ditch." 



* Portion of Ditch," kc 



Ab««« H aaMrt (« to fiHwl is 



Locality . - - 



Approximate Dimeasions Length 



Name and Address of Owner 



Date and Time of Registration 



Condition at Time of Registration : 



Included in the p«jiiculais ^Wfn 



bcrc. ii ihould alwajrs be iUled 

 (1) to whu extent, if any. ibe 

 ditch, pond, JScc. is OTerdfOWRl 

 (3) whether it is fnU, parUT fnU 

 or empty m if the water is mth, 

 bractdU or aalt (4) if the wster 



ii clean, dirty, fool, scnm- 

 COTer«d, weedy, fie. (5) i( »nir 



t\Mto ^'r )»n (6) \f 'Hv LABVAI 



• ft found in Ihe water. »nd (7) if — 



t-ay nKMKTUUOCa tTC Secn frying 



Depth (full) 



_..192 , at _^ m. 



Dates 



Record or Observations. Treatmekt, Ac. 



( K»ch entry should be ligned by the Obtetrer ). 



Fig. I. — Upper part of page in a Conlrol Record book. 



Fig. 2. — Portion of Control Map, indicating empty ditches. 



No. 73E, 74, 75, 77 {while covering washers) ; larz'a-free ditches. Nos. 51c, 52, 54A, 54B 

 (black washers) ; paraffined ditches. Nos. i, 76 {green washers) ; pools cotitaining 

 lafva-eating fish. Nos. 4, 55 {yellow washers) ; and an nnexaniined well. No. 56 

 (uncovered red circle). F'rom the red circle of ditch No. 2, paraffined three iveeks 

 previously, a green washer has just been removed. 



460] 



