No. 73. HOW TO DO TRICKS WITH NUMBERS.--Showing many curious tricks with figures and the magic of numbers. By A. Anderson. Fully illustrated. No. 75. HOW TO BECOME A CONJUROR.--Containing tricks with Dominos, Dice, Cups and Balls, Hats, etc. Embracing thirty-six illustrations. By A. Anderson. No. 78. HOW TO DO THE BLACK ART.--Containing a complete description of the mysteries of Magic and Sleight of Hand, together with many wonderful experiments. By A. Anderson. Illustrated. MECHANICAL. No. 29. HOW TO BECOME AN INVENTOR.--Every boy should know how inventions originated. This book explains them all, giving examples in electricity, hydraulics, magnetism, optics, pneumatics, mechanics, etc. The most instructive book published. No. 56. HOW TO BECOME AN ENGINEER.--Containing full instructions how to proceed in order to become a locomotive engineer; also directions for building a model locomotive: together with a full description of everything an engineer should know. No. 57. HOW TO MAKE MUSICAL INSTRUMENTS--Full directions how to make a Banjo, Violin, Zither, AEolian Harp. Xylophone and other musical instrument; together with a brief description of nearly every musical instrument used in ancient or modern times. Profusely illustrated. By Algernon S. Fitzgerald, for twenty years bandmaster of the Royal Bengal Marines. No. 59. HOW TO MAKE A MAGIC LANTERN.--Containing a description of the lantern, together with its history and invention. Also full directions for its use and for painting slides. Handsomely illustrated. By John Allen. No. 71. HOW TO DO MECHANICAL TRICKS.--Containing complete instructions for performing over sixty Mechanical Tricks. By A. Anderson. Fully illustrated. LETTER WRITING. No. 11. HOW TO WRITE LOVE-LETTERS--A most complete little book, containing full directions for writing love-letters, and when to use them, giving specimen letters for young end old. No. 12. HOW TO WRITE LETTERS TO LADIES.--Giving complete instructions for writing letters to ladies on all subjects; also letters of introduction, notes and requests. No. 24. HOW TO WRITE LETTERS TO GENTLEMEN.--Containing full directions for writing to gentlemen on all subjects; also giving sample letters for instruction. No. 53. HOW TO WRITE LETTERS.--A wonderful little book, telling you how to write to your sweetheart, your father, mother, sister, brother, employer; and, in fact, everybody and anybody you wish to write to. Every young man and every young lady in the land should have this book. No. 74. HOW TO WRITE LETTERS CORRECTLY.--Containing full instructions for writing letters on almost any subject; also rules for punctuation and composition, with specimen letters. THE STAGE. No. 41. THE BOYS OF NEW YORK END MEN'S JOKE BOOK.--Containing a great variety of the latest jokes used by the most famous end men. No amateur minstrels is complete without this wonderful little book.