This sporting monthly, which began publication in 1831, is not to be confused with the older Sporting Magazine, which began publication in 1793.
The August, 1835, issue carried an article on "Racing in France," which is in fact a review of a book, Calendrier des Courses (a record book detailing the results of horse racing in France). The author of that book, a "T. Bryon," is not, however, devoted only to horses, for this reviews points out that Monsieur Bryon has a plan for breeding Newfoundlands for water rescue:
But M. Bryon's most original project is one which he justly describes as much more serious and useful than any of his former undertakings, a project the necessity of which he thinks will be readily appreciated, and its important results strike every sensible and philanthropic mind— namely, an establishment somewhat like our friend Paddington White's but to be confined to the breeding and rearing of Newfoundland dogs. His plan is such a novel and disinterested one that our readers, we are sure, will be glad to have it at length. It consists in procuring the males and females (we give a literal translation of his prospectus) of the genuine breed and stock of the dogs of Newfoundland, and in propagating this precious breed in France, that they may serve the cause of humanity, and be employed in preserving human life. Every one, he says, knows how many of our fellow creatures lose their lives in swimming in the different rivers, canals, and ponds with which France abounds. Every one knows also the fondness of Newfoundland dogs for the water, and the natural and peculiar instinct that leads them to dive into it and extricate persons who have cast themselves or have fallen into it. Determined by these considerations, M. Bryon has resolved to breed and introduce into France the race of these precious and intelligent animals, that there may be an opportunity of having them stationed wherever they will be useful, on the banks of rivers, lakes, canals, and ponds, and on the sea shore. But [knowing, we presume, that humanity, like virtue, is too often its own reward] M. Bryon proposes to the friends of humanity and the patrons of useful institutions (aux amis de l'humanite et aux protectees des choses utiles) that he shall receive an annual subscription of 100 francs from each member of a committee, to be chosen from the body of subscribers, and who shall regulate the distribution of the dogs. Finally, "actuated solely by the desire of making himself useful and of assisting so good a cause, M. Bryon's services will be given gratis on this occasion, but [mark the "but," reader,] for each dog under his care he expects to paid from two franks and a half to three franks a week!" A subscription of 100 francs a year from each member, and from two to three francs a week for each dog! Well done "friend of humanity!"
As near as I can figure it, that annual fee of 100 francs would be roughly equivalent to $750 US in 2021; 3 francs a week would be roughly $20 US in 2021.