[_July 7, 1888._] The following instance of dog instinct (or reasoning?) will, I think, interest some of your readers. About a fortnight ago, while crossing the Albula Pass, our driver stopped for a few moments at the little restaurant on the highest point of it. A rough kind of herdsman's dog, of no particular breed, I suppose, came out and sat down by the carriage and looked up at us. We happened to have a few Marie biscuits in the carriage, so I threw half of one out to him. I suppose he had no experience in Huntley and Palmer's make, for he looked at and smelled it carefully, and then declined to eat it, but again looked up at me. I then took the remaining half, bit off and ate a little bit of it, and then threw over the rest to him. This time he ate it at once, then turned and ate the first piece, which he had before refused, and at once came and asked for more, which I had great pleasure in giving him. I may add that I have several times tried a similar experiment with more pampered dogs at home, but have never succeeded with it. Whether this arises from the latter knowing, in most cases, from experience what they like and what they do not like, or, as I am rather inclined to think, from the superior intelligence of this Alpine dog, who really reasoned that what I could eat he could, I leave your readers to decide for themselves. G. W. C. AN ALPINE DOG. [_July 21, 1888._] I do not think that it was superior intelligence in the Alpine dog over other intelligent dogs which induced him to wait to eat the biscuit till he had seen the giver eat some of it. We have a very sagacious little Highland terrier, and he in the same manner often refuses a new kind of biscuit or cake until he has seen me bite off a small piece and eat it, and then he will do the same. I have also found our boarhound distrusting food occasionally, and declining to take it from his bowl until I have given him some with my hand. Then he seems to feel that it is all right, and comes down from his bench and eats it. This perhaps is not exactly the same, but it is still a phase of a dog's distrust of unaccustomed food, and his reasoning power respecting it. This wonderful reasoning power any one accustomed to dogs soon discovers. J. B. G. DOGS AND LANGUAGE. DO DOGS UNDERSTAND OUR LANGUAGE? [_Aug. 4, 1883._]