This is an outline of the established routine in Rabbit vital statistics. It, of course, varies greatly in every detail, including time and extent of territory involved, and when the destruction is complete it is an awful thing for the carnivores that have lived on the bunny millions and multiplied in ratio with their abundance. Of all the northern creatures none are more dependent on the Rabbits than is the Canada Lynx. It lives on Rabbits, follows the Rabbits, thinks Rabbits, tastes like Rabbits, increases with them, and on their failure dies of starvation in the unrabbited woods. It must have been a Hibernian familiar with the north that said: "A Lynx is nothing but an animated Rabbit anyway." The Rabbits of the Mackenzie River Valley reached their flood height in the winter of 1903-4. That season, it seems, they actually reached billions. Late the same winter the plague appeared, but did not take them at one final swoop. Next winter they were still numerous, but in 1907 there seemed not one Rabbit left alive in the country. All that summer we sought for them and inquired for them. We saw signs of millions in the season gone by; everywhere were acres of saplings barked at the snow-line; the floor of the woods, in all parts visited, was pebbled over with pellets; but we saw not one Woodrabbit and heard only a vague report of 3 that an Indian claimed he had seen in a remote part of the region late in the fall. Then, since the Lynx is the logical apex of a pyramid of Rabbits, it naturally goes down when the Rabbits are removed. These bobtailed cats are actually starving and ready to enter any kind of a trap or snare that carries a bait. The slaughter of Lynxes in its relation to the Rabbit supply is shown by the H. B. Company fur returns as follows: In 1900, number of skins taken 4,473 " 1901 " 5,781 " 1902 " 9,117 " 1903 " 19,267 " 1904 " 36,116 " 1905 " 58,850 " 1906 " 61,388 " 1907 " 36,201 " 1908 " 9,664 Remembering, then, that the last of the Rabbits were wiped out in the winter of 1906-7, it will be understood that there were thousands of starving Lynxes roaming about the country. The number that we saw, and their conditions, all helped to emphasise the dire story of plague and famine. Some of my notes are as follows: May 18th, Athabaska River, on roof of a trapper's hut found the bodies of 30 Lynxes. May 19th, young Lynx shot to-day, female, very thin, weighed only 12 1/2 lbs., should have weighed 25. In its stomach nothing but the tail of a white-footed mouse. Liver somewhat diseased. In its bowels at least one tapeworm. June 3d, a young male Lynx shot to-day by one of the police boys, as previously recorded. Starving; it weighed only 15 lbs.