Cited by 'Virol', Our Dogs (2nd Jan. 1914), p. 23.
Description:

'The Dog and the microbes

Dogs – and indeed all animals – are exposed to the incessant attacks of the microbes which cause disease. These microbes are everywhere – may be on the biscuit your dog eats and in the very air he breathes. They are a constant menace, not only to his health, but to his very life.

It is only lately that scientists have found out why the microbes do not always prevail. By watching tiny drops of blood under the microscope they have discovered that it is the living white cells in the dog’s blood which attack the invading microbes as soon as they enter it, and devour them. One of the foremost problems of Veterinary Science is how to strengthen this defending army of white cells. These rare constituents form the secret of the great success of Virol in the diet of dogs. For the protective blood cells take their rise in the marrow of the bones and certain glands. Virol includes bone-marrow and certain other ingredients that feed and stimulate these bones and glands in which the white cells have their origin.

Virol, the food which replenishes your dog’s blood with white cells which defend him.

Virol should be given regularly to all dogs that are suffering from weakness or exhaustion. Virol is also excellent for conditioning prize or stud dogs; it promotes convalescence in distemper, &c., and is a defence against sudden chills to which delicate toy dogs so easily succumb. Many a valuable litter has been saved by giving Virol to the bitch, both before and after whelping, and to the puppies after weaning. In jars, 1/-, 1/8, and 2/11.

VIROL

VIROL, LTD., 152/166 Old St., London E.C.’