Sanctuaries should never be too big; not one tenth of the whole area will ever be required for them. But they should be placed where they will best serve the double purpose of being natural wild "zoos" and over-flowing reservoirs of wild-life. The exact situations of most, especially inland, will require a good deal of co-operative study between zoologists and other experts. But there is no doubt whatever, that they ought to be established, no matter how well the laws are enforced over both leaseholds and open areas. Civilised man is appreciating them more and more every day; and every day he is becoming better able to reach them. By giving absolute security to all desirable species in at least two different localities we can keep objects of Nature study in the best possible way both for ourselves and our posterity. Only twelve years ago forty mills were debasing the immemorial and gigantic sequoia into mere timber in its last refuge in California. But even the general public sees now that this was a barbarous and idiotic perversion of relative values. What is a little perishable timber, for which substitutes can be found elsewhere, compared with a grove of trees that will be the wonder and delight of generations? What is the fleeting but abominable gratification of destroying the harmless lizard-like Tuatera of New Zealand compared with the deep interest of preserving it as the last living vertebrate that takes us back to Primary times? What is the momentary gratification of wearing egret feathers compared with the certainty of soon destroying the herons that produce them altogether; or what can compensate for the vile cruelty done to mutilated parent birds and starving young, or the murder of Bradley, the bird warden when trying to protect them? LETTERS The following quotations from a few of the many and wholly unsolicited letters received are arranged in alphabetical order. They are strictly _verbatim_: _Australia._ The Animals' Protection Society. F. Montagu Rothery, Esq., Secretary, 82 Pitt Street, Sydney, New South Wales. Here in this State our _fauna_ and _flora_ are both rapidly disappearing, there being so many agencies at work for their destruction. It will soon be too late to save many of our beautiful birds and animals, and I am anxious to bring under notice your words for the preservation of animals by a system of sanctuaries. Dr. Robert Bell, late Chief Geologist, Geological Survey of Canada, who has made many explorations in Labrador and adjacent lands and waters, and who has always given special attention to the mammals, writes: