In the Land of Green Ginger there is a town called Marmalade, which is inhabited exclusively by guinea-pigs. They are of all colours, and of two sorts. The common, or garden, guinea-pigs are the most numerous. They have short hair, and they run errands and twitter. The guinea-pigs of the other variety are called Abyssinian Cavies. They have long hair and side whiskers, and they walk upon their toe...