This section is from the book "The Dogs Of Great Britain, America, And Other Countries. Their Breeding, Training, and Management in Health and Disease", by John Henry Walsh (Stonehenge). Also available from Amazon: The Dogs Of Great Britain, America And Other Countries.
When puppies are reared in densely populated parts of cities, or even in the country where they are crowded together in large numbers, they are weakly in constitution; their blood is pale, from being deprived of the red particles which fresh air and good food, with sunlight, will alone produce. The feeding has a good deal to do with this, but not so much as other causes. The signs are clear enough, the young dog looking emaciated and delicate, and his coat staring, while his lips and tongue are of a pale pink, as if washed out. Worms are almost always present, and if so they aggravate the disease tenfold. Give plenty of fresh air, in the coun-tiy if possible, admitting the sun on all occasions. Administer good nourishing food, composed of the proper proportions of animal and vegetable ingredients. The following mixture of quinine and steel may be used as an internal medicine: Sulphate of quinine; sulphate of iron, of each 1 grain; extract of dandelion. 8 grains. Mix, and give three times a day.
If worms are present, they must of course be got rid of.