...The long triggers should have a short prong left or a nail driven in it to prevent the game from getting the bait off too easy... 
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...The triggers used are generally the figure 4 and set with bait pointing as shown...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...I now saw that these triggers were all right and on visiting my traps again set a few of them with these triggers...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...See cut elsewhere showing these triggers and of the figure likewise...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...These illustrations will give a better idea of how the triggers are made to those who have never seen or used them...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...I have seen deadfall triggers that would catch and not fall when the bait was pulled at, but there is no catch to these...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...Use fly pole triggers as above, for this deadfall...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...If the trap is to be used at dens without bait the regular figure 4 triggers had best be used, but set extending along the log instead of back into the pen...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...Stake ten which is directly opposite from (11) you want to be careful not to split, as one of the triggers rests on it...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...There are several ways to set deadfalls, as different triggers are used...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...It is made like any other only different triggers...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...Two logs for bottom is better than one, make triggers high enough to suit the animal you wish to catch; if he hits the string or wire he is yours...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...That is, place the triggers under the fall just the same as you would if they were baited and you were going to set the trap...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...This gives both hands free to adjust the triggers...
A. R. (Arthur Robert) Harding 「Deadfalls and Snares」
...The pen in illustration is purposely large so that triggers and bait can be seen, giving the inexperienced deadfall trapper a better idea of how to set...
A. R. (Arthur Robert) Harding 「Mink Trapping」
...The figure 4 triggers can be used if preferred, but the two piece is as good if not better...
A. R. (Arthur Robert) Harding 「Mink Trapping」
...It is a good idea to prepare a lot of triggers in advance...
A. R. (Arthur Robert) Harding 「Mink Trapping」
...In an instant I had pulled both triggers, and both barrels had sent forth their united and deadly showers...
Mayne Reid 「The Hunters' Feast」
...A few more noiseless strokes of the paddle brought me within reach, and aiming for the heads of three that ‘lined,’ I pulled both triggers at once...
Mayne Reid 「The Hunters' Feast」
...Then Tommy realizedthat he had touched one of the triggers that regulated the beetle'sautomatism...
Victor Rousseau 「Astounding Stories of Super-Science January 1930」
...His fingers were tensed upon the triggers...
Various 「Astounding Stories of Super-Science, June, 1930」
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