The tortoiseshell is a mixture of colours in patches, and is certainly an exhibition of what may be done by careful selection, mating, and crossing of an animal while under the control of man, in a state of thorough domestication. What the almond tumbler is to the pigeon fancier, so is the tortoiseshell cat to the cat fancier, or the bizarre tulip to the florist. As regards colour, it is a triumph of art over nature, by the means of skilful, careful mating, continued with unwearying patience. We get the same combination of colour in the guinea-pig, both male and female, and therefore this is in part a proof that by proper mating, eventually a tortoiseshell male cat should soon be by no means a rarity. There are rules, which, if strictly followed under favourable conditions, ought to produce certain properties, such properties that may be desired, either by foolish (which generally it is) fashion, or the production of absolute beauty of form, markings in colours, or other brilliant effects, and which the true fanciers endeavour to obtain. It is to this latter I shall address my remarks, rather than to the reproduction of the curious, the inelegant, or the deformed, such as an undesirable number of toes, which are impediments to utility.
In the first place, the fancier must thoroughly make up his mind as to the variety of form, colour, association of colours or markings by which he wishes to produce, if possible, perfection; and, having done so, he must provide himself with such stock as, on being mated, are likely to bring such progeny as will enable him in due time to attain the end he has in view. This being gained, he must also prepare himself for many disappointments, which are the more likely to accrue from the reason that, in all probability, he starts without any knowledge of the ancestry or pedigree of the animals with which he begins his operations. Therefore, for this reason, he has to gain his knowledge of any aptitude for divergence from the ordinary or the common they may exhibit, or which his practical experience discovers, and thus, as it were, build up a family with certain points and qualities before he can actually embark in the real business of accurately matching and crossing so as to produce the results which, by a will, undeviating perseverance, and patience, he is hoping to gain eventually—the perfection he so long, ardently, and anxiously seeks to acquire; but he must bear in mind that that, on which he sets his mark, though high, must come within the limits and compass of that which is attainable, for it is not the slightest use to attempt that which is not within the charmed circle of possibilities.
TORTOISESHELLS.
I place these first on the list because, being an old pigeon fancier and somewhat of a florist, I deem these to be the breed wherein there is the most art and skill required to produce properly all the varied mottled beauty of bright colours that a cat of this breed should possess; and those who have bred tortoiseshells well know how difficult a task it is.
In breeding for this splendid, gorgeous, and diversified arrangement of colouring, a black, or even a blue, may be used with a yellow or red tabby female, or a white male, supposing either or both were the offspring of a tortoiseshell mother. The same males might be used with advantage with a tortoiseshell female. This is on the theory of whole colours, and patches or portions of whole colours, without bars or markings when possible. In the same way some of the best almond tumbler pigeons are bred from an almond cock mated to a yellow hen. The difficulty here, until lately, has been to breed hens of the varied mottling on almond colour, the hen almost invariably coming nearly, if not quite yellow—so much so that forty to fifty years ago a yellow hen was considered as a pair to an almond cock, in the same way as the red tabby male is now regarded in respect to the tortoiseshell female; and it was not until at Birmingham, many years ago, when acting as judge, I refused to award prizes to them as such, that the effort was made, and a successful one, to breed almond-coloured hens with the same plumage as the cock—that is, the three colours. With cats the matter is entirely different, it being the male at present that is the difficulty, if a real difficulty it may be called.
Mr. Herbert Young, a most excellent cat fancier and authority on the subject, is of opinion that if a tortoiseshell male cat could be found, it would not prove fertile with a tortoiseshell female. But of this I am very doubtful, because, if the red and the yellow tabby is so, which is decidedly a weaker colour, I do not see how it can possess more vitality than a cat marked with the three colours; in fact the latter ought, in reality, to be more prolific, having black as one of the colours, which is a strong colour, blue being only the weak substitute, or with white combined. A whole black is one of the strongest colours and most powerful of cats.
Reverting once again to the pigeon fancier by way of analogy, take, as an instance, what is termed the silver-coloured pigeon, or the yellow. These two, and duns, are, by loss of certain pigments, differently coloured and constituted (like the tortoiseshell among cats) from other varieties of pigeons of harder colours, such as blues, and blacks, or even reds. For a long time silver turbit cock pigeons were so scarce that, until I bred some myself, I had never seen such a thing; yet hens were common enough, and got from silver and blues. In the nestling before the feathers come, the young of these colours are without down, and are thus thought to be, and doubtless are, a weakly breed; yet there is no absolute diminution of strength, beyond that of colour, when silver is matched to silver; but dun with dun, these last go lower in the scale, losing the black tint, and not unfrequently the colour is yellow; or, matched with black, breed true blacks. I am, therefore, of opinion that a tortoiseshell male and female would, and should, produce the best of tortoiseshells, both male and female.
It not unfrequently happens that from a tortoiseshell mother, in the litter of kittens there are male blacks and clear whites, and I have known of one case when a good blue and one where the mixed colours were blue, light red, and light yellow were produced, while the sisters in the litter were of the usual pure tortoiseshell markings. In such cases, generally, the latter only are kept, unless it is the blue, the others being too often destroyed. My own plan would be to breed from such black or white males, and if not successful in the first attempt, to breed again in the same way with the young obtained with such cross; and I have but little doubt that, by so doing, the result so long sought after would be achieved. At least, I deem it far more likely to be so than the present plan of using the red tabby as the male, which are easily produced, though very few are of high excellence in richness of ground tints.
TORTOISESHELL-AND-WHITE.
If tortoiseshell-and-white are desired, then a black-and-white male may be selected, being bred in the same way as those recommended for the pure tortoiseshell, or one without white if the female has white; but on no account should an ordinary tabby be tolerated, but a red tabby female of deep colour, or having white, may be held in request, though I would prefer patches of colour not in any way barred. The gray tabby will throw barred, spotted, or banded kittens, mixed with tortoiseshell, which is the very worst form of mottling, and is very difficult to eradicate. A gray "ticking" will most likely appear between the dark colour, as it does between the black bars of the tabby.