On the 26th of May, 1837, a similar test was made by the agricultural society of Aurillac, whose committee, in their report, use the following language: “Each cow was examined separately by M. Guenon, who wrote his notes upon her, and delivered the paper closed to one of us. Immediately after, another member of the committee questioned the owner of the cow, or the person in charge of her, in regard to her daily yield of milk, its quality, and the time during which she continued to give milk after being got with calf. The answers were taken down in writing, and then compared with the notes written by M. Guenon. They were generally found to accord, and proved to the satisfaction of your committee and of every one present, all of whom attended with lively interest to these proceedings, that M. Guenon possesses great sagacity in judging of cattle, and that his method rests upon a sure foundation.” The Bordeaux committee added: “To the proprietors and to the lookers-on, all this was very surprising for the examinations were as quickly made as the results were certain. As to ourselves to whom the method was no longer a secret, it was with renewed interest and astonishment that we viewed the accuracy of the results. _This system we do not fear to say is infallible._ We only regretted the whole society was not present.” The committee further reported that Mr. Guenon had, after more than twenty years observations and researches, discovered certain natural and positive signs that were proof against all error, while the writers and professors who have particularly occupied themselves with the bovine race, can only indicate some vague signs for judging of the fitness of cows for secreting milk. That this method is valuable, whether it tells the yield of milk only, or indicates the improvement of breeds, which are liable to deterioration from mismanagement in crossing, and that it is applicable not to full-grown animals alone, but also to calves at as early an age as three months. Thus it affords a sure means of forming a judgment of full-grown animals, about which we might be misled on account of their form and their parentage, and secures the improvement of herds by enabling us to dispose of those calves which will not repay the cost of rearing them. We shall thus no longer rear calves at great expense for two or three years that should have been consigned to the butcher, nor sell calves that would pay best to rear. If this system is pursued, only cows and bulls of best quality will be kept, and in very few years how great will be the improvement of our herds, and largely increased the cheapest and best of all foods, milk, and the production of butter and cheese.