The reports of so many heavy rifles, which of necessity were fired every evening at dusk in the days of muzzle-loaders, for the sake of cleaning, must have widely alarmed the country, but independently of this special cause there can be no doubt that after a few days' heavy shooting, the elephants will combine in some mysterious manner and disappear from an extensive district. In many ways these creatures are perplexing to the student of natural history. It would occur to most people that in countries where elephants abound we should frequently meet with those that are sick, or so aged that they cannot accompany the herd. Although for very many years I have hunted both in Asia and Africa I have never seen a sick elephant in a wild state, neither have I ever come across an example of imbecility through age. It is rarely we discover a dead elephant that has not met with a violent death, and only once in my life have I by accident found the remains of a tusker with the large tusks intact. This animal had been killed in a fight, as there were unmistakable signs of a fearful struggle, the ground being trodden deeply in all directions. It is supposed by the natives that when an elephant is mortally sick it conceals itself in the thickest and most secluded portion of the jungle, to die in solitude. Most animals have the same instinct, which induces them to seek the shelter of some spot remote from all disturbance; and should we find their remains, it will be near water, where the thirst of disease has been assuaged at the last moment. The ox tribe are subject to violent epidemics, and I have not only found the bodies of buffaloes in great numbers upon occasions during some malignant murrain, but they have been scattered throughout the country in all directions, causing a frightful stench, and probably extending the infection. A few years ago there was an epidemic among the bisons in the Reipore district of India; this spread into neighbouring districts over a large extent of country, and caused fearful ravages, but none of the deer tribe were attacked, the disease being confined specially to the genus Bos. There are interesting proofs of the specific poison of certain maladies which are limited in their action to a particular class of animal. We find the same in vegetable diseases, where a peculiar insect will attack a distinct family of plants, or where a special variety of fungoid growth exerts a similar baneful influence.