There is now no other sure place, but the office, or Gibbs', that I could advise you to send such persons. Those to me, therefore, must come in office hours. In a few days, however, Napoleon will have a room down town, and at odd times they can be sent there. I am not willing to put any more with the family where I have hitherto sometimes sent them. When it is possible I wish you would advise me two days before a shipment of your intention, as Napoleon is not always on hand to look out for them at short notice. In special cases you might advise me by Telegraph, thus: "One M. (or one F.) this morning. W.S." By which I shall understand that one Male, or one Female, as the case may be, has left Phila. by the 6 _o'clock train_--one or more, also, as the case may be. Aug. 17th, 1855. Truly Yours, S.H. GAY. LETTER FROM JOHN H. HILL, A FUGITIVE, APPEALING IN BEHALF OF A POOR SLAVE IN PETERSBURG, VA. HAMILTON, Sept. 15th, 1856. DEAR FRIEND STILL:--I write to inform you that Miss Mary Wever arrived safe in this city. You may imagine the happiness manifested on the part of the two lovers, Mr. H. and Miss W. I think they will be married as soon as they can get ready. I presume Mrs. Hill will commence to make up the articles to-morrow. Kind Sir, as all of us is concerned about the welfare of our enslaved brethren at the South, particularly our friends, we appeal to your sympathy to do whatever is in your power to save poor Willis Johnson from the hands of his cruel master. It is not for me to tell you of his case, because Miss Wever has related the matter fully to you. All I wish to say is this, I wish you to write to my uncle, at Petersburg, by our friend, the Capt. Tell my uncle to go to Richmond and ask my mother whereabouts this man is. The best for him is to make his way to Petersburg; that is, if you can get the Capt. to bring him. He have not much money. But I hope the friends of humanity will not withhold their aid on the account of money. However we will raise all the money that is wanting to pay for his safe delivery. You will please communicate this to the friends as soon as possible. Yours truly, JOHN H. HILL. LETTER FROM J. BIGELOW, ESQ. WASHINGTON, D.C., June 22d, 1854. MR. WILLIAM STILL:--_Sir_--I have just received a letter from my friend, Wm. Wright, of York Sulphur Springs, Pa., in which he says, that by writing to you, I may get some information about the transportation of some _property_ from this neighborhood to your city or vicinity.