"SIR--Cannot Mrs. Fish and the Misses Fox be prevailed on to make us a visit? The fact is, Gray, we Michiganders are wofully benighted upon Spiritual subjects. Everything pertaining to 'the world, the flesh, and the devil' we understand perfectly; but when it comes to getting communications from the other world direct, and seeing with our eyes, we 'knock under.' Our press, too, is anything but free upon these subjects, giving only one side, and concluding with the small bill of _The Herald_, that there are _no more_ things in Heaven and earth than are dreamed of in their philosophy."--_Detroit Correspondent._ FROM THE CINCINNATI NONPAREIL. "_A Fair Challenge by Mrs. Fish._--It appears that the most sceptical in Cincinnati, even the editor of _The Daily Times_, have to concede that toe and knee joints have nothing to do with Spirit rappings. It has become a settled fact that Burr's and the Buffalo doctors' theories are the silliest humbug theories of the day. But the editor of _The Times_, in a spirit of malicious infidelity, accuses Mrs. Fish and her young sisters, Margaretta and Cathy, with having concealed about their persons some sort of intelligent machinery, which makes the raps and answers questions, whether mentally or orally put. The editor deserves a leather medal for so sage a conclusion, and should have one, had not the great demand for them among Burr's followers and the Buffalo boobies exhausted the stock of those ornaments and cleaned the market of supply. "To silence this pretension, Mrs. Fish published the following challenge in the Cincinnati papers: "'A CARD TO THE PUBLIC. "'With my sisters, Margaretta and Cathy Fox, I will remain at the Walnut Street House a few days, where we shall be happy to wait upon all those who wish to satisfy themselves as to the truth or falsity of Spirit rappings. The editor of _The Times_ generously acquits us of all joint snapping, and I think we can very easily dispose of his explanation. If there be even a shadow of suspicion still lurking in any mind that the sounds are made by mechanical contrivances of any character, we are willing at any moment to meet a committee of ladies, to whom we will give all fair opportunity of satisfaction. We only ask that the committee shall consist of ladies whose testimony will have weight with the public. "'ANN L. FISH.'