POST-OFFICE BOX:--7, 10, 23, 30, 39, 47, 55, 72, 88, 104, 118, 134, 150, 166, 182, 198, 214, 230, 246, 262, 278, 294, 310, 326, 342, 358, 374, 390, 406, 422, 438, 454, 470, 486, 502, 518, 534, 550, 566, 582, 598, 614, 630, 646, 662, 678, 694, 710, 726, 742, 758, 774. Posy Parker's Halloween, 763. Potatoes, Where did, come from? 707. Preay Chamber, The, 4. Prescott, General, and the Yankee Boy, 185. Princess, A brave, 232. Prison Ships, New York, 478. Prisons, New York, in 1776-77, 204. "Probabilities, Old," 94. Professor, The, on Twinkling, 35; "Old Probabilities," 94; Our own Star, 122; Time, 170; How many Worlds? 235; Flowers, 491. Puck and Blossom, 324, 340. Purse, Crochet, 100. Putnam's narrow Escape, 92. PUZZLES:-- Letter Puzzle, 8; Mathematical, 16, 99: A Latin Word Square, 155; Broken Rhymes, 200; Puzzles from young Contributors. (See "Post-office Box.") Queer Racing Craft, Some, 617. Quicksilver Mines in Peru, 728. Rabbits' Fête, 162; Rabbit Day, 297; White Rabbits and Tar Baby, 309; Rabbits to Find, 745. Rat Race, The Adventures of a, 451. Red Willow and its Uses, 273. Ribbon Dance, 200. River, a buried, Tracking, 201. Robber Bluebird, The, 251. Robin, Mother, How, called a new Mate, 115. Robinson Crusoe's Island, 527. Rob's Navy, 362. Rose-Bush, The oldest, in the World, 99. Roverings' Fourth, The, 510; The Roverings at Coney Island, 602. Royal Blacksmith, The, 334. Royal Treasuries, A Peep into, 207. Rug, Canvas, Embroidered, 38. Russian Sentry, A wide-awake, 190. Salt and its Value, 299. Salt, How, was formerly made, 696. Sandy Hook--Its Story, 735. Santa Claus visits the Van Johnsons, 79. Scarf, Knitted, 228. Schools, The Boys', of England--Westminster, 347. Schuyler, General, and the Tories, 283. Screw-heads, Imitation, 744. Sea-Breezes, 564, 595, 674, 739. Sea-Cucumbers, 27. Sea-side Adventure, 532. Secret was stolen, How the, 431. Seeking his Fortune, 109. Setting the Brook to work, 430. Shakespeare, 737. Ship, School-, "St. Mary's," Life on the, 10; How sunken Ships are raised, 82; Ships past and present, 162; The little Ships of the Water Streets, 253; Ship-building, 464; The Ship of the Desert, 577; New York Prison-Ships, 478. Skates were Bones, When, 146. Slain by her Defender, 3. Smuggler, How Aunt Pam became a, 98. Snow-Flower, The, 55. Snow, Lost in the, 171. Snow, The Hidden Beauties of the, 177. Soapboxticon, The, 232. Soldier of Fortune, An American, 474. Sons of the Brave, 767. Sparrow, The House-, 153. Spiders; The Trap-door, 41; Spiders that kill Birds, 136; A Spider's Instinct, 392. Sponges, 24. Squirrels and Wild-Cats, 89. Stained Glass, Imitation, 776. Star, Our own, 122. "St. Mary's," Life on the, 10.