..."I will do you the justice to admit that's the nearestthing we have yet struck out to an idea for tracking him... 
Grant Allen 「An African Millionaire」
...In a couple of hours there was a good tracking snow and the boys were bound to go out and see if they could not kill a deer...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...We had a good deal of freezing weather without much snow for tracking...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...The first snow that fell to make good tracking was a damp one, and hung on the underbrush so much that it was impossible to see but a few yards unless in very open timber...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...One morning after there had been a fall of four or five inches of snow, which made fine tracking, Mr...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...Next day, however, in tracking someantelope, we happened to cross the route taken by my servants, whenwe heard a familiar little yelp, and down from a tree we were underrushed "Pips...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The first day of thaw usually ends tracking because the investigator loses the trail when it crosses a patch of bare ground...
Donald W. Janes 「Home Range and Movements of the Eastern Cottontail in Kansas」
...On each subsequent tracking flight,the wolf's frequency was also monitored with nosuccess...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...Thirsty and feeble from the long fast, and the fatigue of tracking under a hot sun, they continued their course in anything but a lively fashion...
Mayne Reid 「The Giraffe Hunters」
...We scattered in different directions in parties of two and three, and commenced tracking the deer...
Mayne Reid 「The Hunters' Feast」
...The others were Man-eating Bird, Rolling Stone, that crushed all in its path, Tracking Bear, and Antelope, who killed without mercy...
Edward S. Curtis 「The North American Indian」
...A Story of the Tracking Down of a Mysterious Scientific Killer
By C...
Various 「Astounding Stories of Super-Science, December 1930」
...Torchlight tracking...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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