The object of the following pages is two-fold: first, to extract the account of the North American Indian method of Horse-taming, as given by Mr. Catlin in his new work, entitled 'Letters and Notes on the Manners, Customs, and Condition of the North American Indians,' and to detail certain experiments which have been tried by the direction and in the presence of the Communicator; and, second, to urge gentlemen, farmers, stable-keepers, horse-trainers, horse-breakers, and all others who may be interested in the taming of horses, to try for themselves experiments similar to those here detailed, experiments which are exceedingly easy of trial, and will be found exceedingly important in result. The following is a detail of the experiments witnessed and directed by the Communicator:-- During a visit in the North Riding of Yorkshire, the volumes of Mr. Catlin first fell under the Communicator's observation, and among other passages those just quoted struck him forcibly. Although he scarcely hesitated to comprehend the circumstances there detailed, under a well-known though much-disputed class of phenomena, he was nevertheless anxious to verify them by actual experiment before he attempted to theorize upon them. And he now prefers to give the naked facts to the public, and leave his readers to account for them after their own fashion. It so happened that, while staying with his brother-in-law, F. M., of M---- Park, the Communicator had the pleasure of meeting W. F. W., of B----, a great amateur in all matters relating to horses. In the course of conversation the Communicator mentioned what he had read about horse-taming, and the detail seemed to amuse them, although they evidently discredited the fact. The Communicator begged them to put the matter to the test of experiment, and M., who had in his stables a filly, not yet a year old, who had never been taken out since she had been removed from her dam, in the preceding November, agreed that he would try the experiment upon this filly. The Communicator made a note of the experiments on the very days on which they were tried, and he here gives the substance of what he then wrote down. EXPERIMENT THE FIRST. SUBJECT--_A Filly, not yet a year old, who had never been taken out of the stable since she had been removed from her dam in the preceding November._