Since writing, the above, we have received the August number of the Bee Journal, and in it notice the advertisement of the National Bee Hive Company, of which Mr. Baldridge is Secretary. It says--“no _wrought iron_ knives for sale, in fact never _kept_ them, nor _sold_ them. _Liars_ will please to take the hint.” Indeed! I sincerely hope they will. Now, in justice to _myself_, I must say a few more words in regard to that knife, which we have already spoken about in this communication. When we received the knife last fall, it was shown to a person whom we thought a competent judge of metal, and was unhesitatingly pronounced--well, anything but _spring-steel_, as it could readily be bent into almost any shape, and would _so remain_. However as its quality was not mentioned before the purchase; and as it has been found, on trial, to work well enough for all practical purposes, when rightly used, I suppose we ought not to have said anything about that part of the transaction. The difference between the “best quality of wrought iron” and the lower classes of steel is so slight that, to separate them, would be like naming the hour that sweet cider becomes sour. Iron is used in three states; as crude or cast iron, as _steel_, and as wrought iron, the difference only depending on the relative amount of carbon with which the metal is combined--cast iron containing a larger proportion of carbon than steel, and steel more than wrought or malleable iron. I have nothing whatever against Mr. Baldridge, this being my first dealing with him; and my only excuse for writing as I did (A. B. J., vol V., page 18,) is that, after waiting, and watching the post office, so long as I did, and finally receiving a knife--too late for use--which did not then come up to my expectations, I felt considerably out of humor, and told the whole story, when perhaps I should have kept _mum_ and “swallowed” it all, as he had not advertised knives for sale, his reason for not being more prompt, may be that he was obliged to invent and manufacture it, after it was ordered. I have no doubt that parties ordering of him now, will receive knives that will give perfect satisfaction. I. F. TILLINGHAST. _Factoryville, Pa._, Aug. 5, 1870. * * * * * [For the American Bee Journal.] More about the Looking-glass. On pages 34-5, Vol. VI., of the American Bee Journal, H. Nesbit states that he has tried the looking-glass theory to his satisfaction in _one_ instance. Now, Mr. Editor, I wish to say, in reply, that the glass has been tried three times, this year, to my knowledge, and three swarms of bees secured. The particulars of _one_ case will be sufficient to cause most of the Journal’s readers to try the experiment, when opportunity offers, whether one that has “_played_” the theory “_out_” will try any more, or not.