A simple retouching varnish is made by adding dammar gum to turpentine in the proportion of 40 grains of the gum to 1 oz. of turpentine, but the addition of the resin as in the last formula seems to give a better grain to the negative. CONSTANT READER asks if there is a solution for making green prints, and asks what is the matter with red prints, made by formula given in the Camera Club, which instead of being red, are a dirty brick color. Directions for green tones were given in No. 862, May 5, 1896. SIR KNIGHT B. A. PORTER asks how to make carbon prints, and says he would like to learn photography in some studio, and asks what course to pursue to obtain a position. Directions for making carbon prints have not been given in this column. A paper on carbon-printing is prepared, and will appear after the holidays. Go to some first-class photographer and state what you wish to do. Many photographers take boys who wish to learn the art of photography and give them instruction, in payment for their services while learning. The rudiments are easily mastered, but perfection comes only by long and patient labor. FRED. J. asks how to join the Camera Club; if the "Vive" is a good camera for beginners; and if the pictures made with it may be entered in the ROUND TABLE contest. Send name and address to the ROUND TABLE, stating your wish to become a member of the Camera Club, and your name will be enrolled on the books and a certificate sent you. Yes, to the other questions. SIR KNIGHT RAYMOND E. REYNOLDS asks if the Bullet is a good camera. The Bullet does excellent work for a small camera. SIR KNIGHT GEORGE FULLER asks if the Premo, Sr., is a good camera, or if he could get a better camera of some other make for the same price. The Premo is an excellent camera, and has been on the market long enough to have its merits tested. A Premo was given as one of the prizes in our competition two years ago, and the winner is very much pleased with it. Each make of camera has some special feature to recommend it. You would doubtless be entirely satisfied with the Premo, and the price is about the same for all cameras of the size named. ADVERTISEMENTS. Postage Stamps, &c. [Illustration: STAMPS] 100 all dif., Venezuela, Bolivia, etc., & =POCKET ALBUM=, only 10c.; 200 all dif., Hayti, Hawaii, etc., only 50c. Agts. wanted at 50% com. List FREE! =C. A. Stegmann=, 5941 Cote Brilliant Ave., St. Louis, Mo. =FREE= with every 10c. packet of stamps, a beautiful calendar. Wamsutta Stamp Co., N. Attleboro, Mass. =RUSSIA=, 12 var., 10c. Japan, 12 var., 10c. Dutch Indies, 5 var., 10c. Approval books, 50%. D. W. OSGOOD, Pueblo, Colo. [Illustration: PISO'S CURE FOR CONSUMPTION] CURES WHERE ALL ELSE FAILS. Best Cough Syrup. Tastes Good. Use in time. Sold by druggists.