other mercies flow." Having obtained further corroboration of the truth of his conclusions by the vaccination of his own son and several others, he published in the form of a quarto pamphlet called "An Inquiry," a brief and modest but complete account of his investigations and discoveries. By this the attention of the whole medical world and general public was called to the subject. His doctrines were put to the test and abundantly confirmed, so that Mr. Clive, the celebrated surgeon of the day, urged him to come to London, and promised him an income of £10,000 a year. Jenner, however, declined the request, saying, "Admitting as a certainty that I obtain both fortune and fame, what stock should I add to my fund of little happiness? And as for fame, what is it? A gilded butt forever pierced by the arrows of malignancy." Jenner always maintained that small-pox and cow-pox were modifications of the same disease, and that in employing vaccine lymph we only make use of means to impregnate the system with the disease in its mildest form, instead of propagating it in its virulent and contagious form, as is done when small-pox is inoculated. He felt, also, that there was this objection to the latter practice, which had obtained prevalence since its introduction to this country by Lady Mary Wortley Montagu, that the disease was thus spread among the community. He had, however, at that time to contend against the prevalent notions that epidemic diseases affecting the human race are peculiar to man and have no influence on the lower animals, and that the diseases of other animals are not communicable to man. But we have now abundant evidence that both these notions are erroneous. Jenner himself, indeed, had shown what was well known in various parts of the country, that the "grease" of the heel of the horse was frequently communicated to those who had the care of horses, whether or not it was the same disease as that which affected the cow. It is sufficient only further to adduce another disease of horses, called "farcy," which is not infrequently fatal to grooms and others, not to mention the still more dreaded hydrophobia communicated by dogs and animals of the feline species.