Read the given passage and answer the questions that follow.

During the day, while Ibbotson dealt with some office work that had been sent out to him, I took a rifle and went off to see if I could get a shot at the leopard. Tracking on the hard and pine-needle covered ground was not possible, so I made for the shoulder of the hill beyond which the villagers had told us there was heavy jungle. Here I found the ground very difficult to negotiate, for, in addition to dense scrub jungle through which it was not possible to penetrate, there was a series of rock cliffs on which it was impossible for a human being to find foothold. In this area there was a surprisingly large head of game, and on the paths that intersected it I found the tracks of kakar, ghooral, pig and a solitary sarao. Of the leopard - except for a few old scratch-marks - I found no trace. 

The gin-trap that had been sent off from Rudraprayag the previous day arrived while we were having lunch, and in the early evening we took it down to the glade and, after setting it, poisoned the kill with cyanide. I had no experience of poisons, nor had Ibbotson, but in a conversation with a doctor friend before leaving Nainital I had mentioned that the Government wanted me to try every means to kill the man-eater, and that there was little use in my trying poison, as the records showed that the leopard throve on it. I told him what poison had hitherto been tried, and he then recommended my using cyanide, which was the best poison for the cat family. I had passed this information on to Ibbotson, and a few days previously a supply had arrived, with capsules with which to use it. We inserted a few of these capsules in the kills at the places where the leopard had eaten.