This section is from the book "A Library Of Wonders And Curiosities Found In Nature And Art, Science And Literature", by I. Platt. Also available from Amazon: A library of wonders and curiosities.
It is from a respectable source that we insert the following narrative of the Sagacity of Dogs.
M. La Valee, in his Journey through the Departments of France, published in 1792, gives the following curious account of the manner in which the country people, in the neighbourhood of Peronne and Doulens, had trained their dogs to elude the vigilance of the officers of the revenue. - At night, these animals were laden, each with a parcel of goods proportioned to its size ; except one alone, who was their leader, and went without any burden. A crack of a whip was a signal for them to set out. The leader travelled a little distance before the rest; and, if he perceived the traces of any stranger, he returned to the other dogs: these either took a different way, or, if the danger was pressing, concealed themselves behind the hedges, and lay close till the patrole had passed. When they arrived at the habitation of their master's associate, they hid themselves in the neighbouring fields and hedges, while their leader went to the house, and scratched at the door, or barked, till he was admitted, when he lay quietly down, as at home: by this the smuggler knew that the caravan was come ; and, if the coast was clear, he went out, when he gave a loud whistle, and the dogs came running to him from their several hiding-places!
Peltier, in his Annals of Paris, No. 164, for December, 1798, records the following anecdote: - At the beginning of the Revolution, a dog went daily to the parade before the palace of the Thuilleries, thrust himself between the legs of the musicians, marched with them, halted with them, and after the parade, disappeared until the next morning, when he resumed his occupation. The constant appearance of this dog, and the pleasure which he seemed to take in the music, made him a favourite with the band, who nicknamed him, Parade. One gave him food to-day, another to-morrow; and he understood, by a slight signal, and a word or two, whom he was to follow for his dinner; after which, faithful to his independence, the dog always withdrew, in spite of any caresses or threats. Sometimes he went to the opera, sometimes to the Comedie Italienne, and sometimes to the Theatre Feydeau ; in each of which houses he found his way to the orchestra, and would lie down silently in one corner of it, until the performance was over. "I know not, (says Peltier) whether this dog be now alive: but I know many musicians, to whom his name, his figure, and the singularity of his habits, are perfectly familiar."
In Petit's Campaign of Italy, under the chief consul Buonaparte, published in 1800, we have the following anecdote, which places this animal in the most engaging light: "In traversing the Alps over the mountain Great St. Bernard, many people perish among the almost inaccessible rocks, whose summits are covered with eternal snow. At the time we crossed them, the chapel of the monastery of St. Bernard was filled with dead bodies, which their dogs had discovered suffocated and benumbed under the snow. With what emotions of pleasure did I caress these dogs, so useful to travellers! how can one speak of them without being moved by their charitable instinct! Notwithstanding the paucity of our eatables, there was not a French soldier who did not manifest an eagerness to give them some biscuit, some bread, and even a share of their meat. Morning and evening, these dogs go out on discovery; and if in the midst of their wandering courses the echo of some unfortunate creature ready to perish reaches their attentive ears, they run towards those who call out, express their joy, and seem to bid the sufferer take courage, till they have been to procure assistance; in fact, they hasten back to the convent, and, with an air of inquietude and sadness, announce in a very discernible manner what they have seen. In that case, a small basket is fastened round the dog's neck, filled with food proper for re-animating life almost exhausted;. and, by following the benevolent messenger, an unhappy creature is thus frequently snatched from impending destruction."

The Danish Dog.

Fox Hound.

Persian Greyhound.

Pointer.

Animal Sagacity
A Florentine nobleman possessed a dog, which would attend his table, change his plates, and carry his wine to him, with the utmost steadiness, and the most accurate attention to his master's notices.
It is related by the illustrious Leibnitz, that a Saxon peasant was in possession of a dog of the middling size, then about three years of age. The peasant's son, perceiving accidentally, as he imagined, some resemblance in its sounds to those of the human voice, attempted to teach it to speak. By the perseverance of the lad, the dog acquired the power, we are told, of pronouncing about thirty words. It would, however, exercise this extraordinary faculty only with reluctance, the words being always first spoken by the preceptor, and then echoed by the pupil. This circumstance is attested by Leibnitz, who himself heard it speak; and it was communicated by him in a memoir to the Royal Academy of France.
In the theatre of Marcellus, a case occurred, which many will consider more probable, but which is almost as extraordinary, as mentioned by Plutarch. - "A dog was here exhibited which excelled in various dances of great complication and difficulty, and represented also the effects of disease and pain upon the frame, in all the contortions of countenance and writhings of the body, from the first access, to that paroxysm which often immediately precedes dissolution. Having thus apparently expired in agony, he would suffer himself to be carried about motionless, as in a State of death; and after a sufficient continuance of the jest, he would burst upon the spectators with an animation and sportiveness, which formed a very interesting conclusion of this curious interlude, by which the animal seemed to enjoy the success of his scenic efforts, and to be delighted with the admiration which was liberally and universally bestowed upon him."
"A tinker (says Pezelius) brought a wonderful dog to Constantinople; and a number of people being assembled to behold him, many of them laid their rings in a heap confusedly before him. At the command of his master, he would restore to every man his own, without any mistake. Also, when his master asked him which of the company was a captain, which a poor man, which a wife, which a widow, and the like, he would discover all this without error, by taking the garment of the party inquired after in his mouth."
 
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