Teaching Rabbits
If you find you have an intelligent rabbit who quickly learns to come to you when you call him by name, you will find, with patience, you can teach him that when you say "On trust," he must not touch the dainty you offer him, and that "Paid for" means he may have it. He will also learn to "die," and shake hands when you tell him to do so.
Guinea-Pigs
Guinea-pigs need treatment and housing similar to rabbits.
Squirrels
In buying a squirrel make sure it is a young one, because whereas a young one is difficult enough to tame, an old one is not to be tamed at all. Unless you can give him a really large cage, with room for a branch on which he may leap about, it is cruel to keep a squirrel at all, so beautifully free is his nature. A little side compartment containing a revolving wheel should be added. Your only chance of taming him is to be extremely quiet and gentle in all your visits to the cage and in giving him his food—nuts, acorns, grain, cold boiled potatoes, dry bread, and now and then a small piece of cooked meat. A very charming account of what it is possible to do with tame squirrels will be found in a little book called Billy and Hans, by Mr. W. J. Stillman.
Mice
Mice should have a cage with two compartments, one of which should have a door in the woodwork but no wires. In this room should be a bed of hay. The natural food of mice is grain, but in captivity they are generally fed on bread and milk and slices of apple. They can be tamed to a small extent, but for the most part they do no more than run round a wheel, although if other gymnastic contrivances are offered them they will probably do something with them. Dormice (to whose food you may add nuts) sleep through the winter months, and are therefore not very interesting for more than half the year.