=THE FAMOUS "X RAY" PICTURES= Copies of the very interesting Roentgen or "X Ray" photographs can be obtained now from _The Great Round World_. These famous photographs are mounted on cards, size 11 x 14 inches, and are from selected negatives made by PROF. M.I. PUPIN, of Columbia University, New York, DR. A.W. GOODSPEED, of University of Pennsylvania, and DR. W.F. MAGIE, of Princeton College. A selection of 39 different subjects is offered. * * * * * =PRICE, 50 CENTS EACH, (to yearly subscribers of _The Great Round World_, 40 cents net).= * * * * * Address all orders to THE GREAT ROUND WORLD, or =William Beverley Harison 3 & 5 West 18th Street New York City= * * * * * =MONOGRAMS MONOGRAMS= Who is Collecting Monograms? * * * * * We have been asked by so many of our boys and girls for monograms, that we have had collections made of some of the prettiest, and can now send them to any address, postage paid, upon receipt of the price. The safest ways to remit are by registered letter or postal note. Set No. 1. 25 printed in one color 25 cents " " 2. " " " " " 35 " " " 3. " " " gold, silver, and bronze 50 " " " 4. " " " " " " " 70 " " " 5. " embossed in gold, silver, and colors 80 " " " 6. " " " " " " " 80 " Complete set, including all of these sets $3.00 Address, =WILLIAM BEVERLEY HARISON 3 and 5 West 18th Street, New York City= * * * * * =The Best Pencil Sharpener= =The straight edge cuts "just like a knife" with the grain. The circular edge makes a round, smooth cut and leaves the pencil smooth and without a ridge, as if sandpapered. Note the PROTECTED Cutting Edges. The sides of the slot form a guide so you cannot break the point. It cannot slip. You can carry it loose in your pocket without fear of injuring the sharpener or yourself.= [Illustration: The "SLOT" Does It YOU CANNOT CUT YOUR FINGERS WITH THIS SHARPENER] =Sample sent by mail on receipt of 15 cents or 8 two-cent stamps.= Any boy or girl sending 10 two-cent stamps and a correct solution to this puzzle will receive two sharpeners and sample copy of THE GREAT ROUND WORLD. =PUZZLE=--Rearrange these numbers, 1 to 25, so that each line from side to side, and from top to bottom, also from corner to corner, will, when added, make the same sum.