. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 50 CALIFORNIA FISH AND GAME Some trollers used two bags of chemical at a time, fastening tliem Avitli short lines one on each side of the boat. This method })r()ved exceptionally good when used with a more highly powered outboard motor on the boat. Although trolling teams, excepting the marginal team, had been instructed to troll chemical at the surface and at 15- and 30-foot levels in their sections, for the most part trolling at the
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 50 CALIFORNIA FISH AND GAME Some trollers used two bags of chemical at a time, fastening tliem Avitli short lines one on each side of the boat. This method })r()ved exceptionally good when used with a more highly powered outboard motor on the boat. Although trolling teams, excepting the marginal team, had been instructed to troll chemical at the surface and at 15- and 30-foot levels in their sections, for the most part trolling at the surface was adequate. Deeper trolling was found to be extremely difficult and hazardous and greatly slowed chemical treatment as a whole. Trollers used the 25- p(»uiid anchors to troll at the deeper levels. Advance instruction of trollers in securely fastening the trolling lines to bags of chemical before starting prevented the loss of all but one bag of chemical. In that instance the towline had not been securel}'' fastened to the boat before starting Fig. It). The marginal troller takes on a re-till ot chemical at the marginal supply station. Note Ijurlap l)ag of timbo mud ready for spreading and commercial pacl<age of timbo powder on pier at right. Open-water trollers and two supply stations are seen in the background. Photograph by George S. Myers, Sep- tember 11, 1940. Several open-water trollers combined a zig-zag course with the straight course in trolling chemical in the lane assigned to them; the zig-zag course was overlapped on the return trip across the lake. This method of distribution from all appearances was excellent and strength- ened the original contention by the writer that a combination of several ways and means of distribution would best accomplish the desired uniform spreading of the chemical throughout the entire lake. Where i:)ossible, large outboard motors were used to create a greater wash behind boats and to speed uj) and more thoroughly d
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