Lantern, Magic, Using Sun's Light in 251
Lantern Slide Masks, Cutting 245
Lantern Slides, Blueprint, How to Make 120
Lantern Slides, How to Make 127, 220
Lantern Slides, Tinted, How to Make 144
Lathe, Bench, Made of Pipe Fittings 316
Lathe, How to Make 86
Lathe, Making Gear Wheels without 46
Lathe, Wood Turning, To Make Out of an Old Sewing Machine 403
Lathe Work, Calipering 258
Lathes, Small, Gear Cutting Attachment for 167
Laundry Device--Clothes Rack 14
Laundry Device--Clothesline, Double, Support for 318
Laundry Device--Iron Rest 19
Laundry Device--Iron Rest for an Ironing Board 288
Laundry Device--Ironing Board Stand 17, 429
Laundry Device--Sad Iron Polisher 286
Laundry Device--Washboard Holder 39
Lavatories, Sleeve Holders for 17
Lead Cannon, How to Make 338
Lead, Melting in Tissue Paper 185
Lead Pencil Rheostat, How to Make 145
Leaf, Photograph Printed on 362
Leather Card case, How to Make 350
Leather Hinges, Metal Coverings for 41
Leather on Furniture, Cleaning 13
Leather, Softening 140
Leather Spectacle Case, How to Make 228
Leather, Table Mat of, How to Make 286
Leather Work, Arts and Crafts 168
Letter Holder of Pierced Metal 294
Lettering on a Dark Ground, Paint for 170
Lettering with a Carpenter's Pencil 306
Letters, Glass, Removing from Windows 319
Levitation-Modern Stage Trick 459
Library Set in Pyro-Carving 407
Life Buoy, How to Make 432
Life preserver, Homemade 4
Light Gas without Matches, To 394
Light, Post or Swinging, Homemade 189
Light Trick, Invisible 251
Lightning Arrester, How to Make 122
Lightning, Photographing 124, 176
Lights, Turning On and Off from any Number of Places 310
Linoleum, How to Repair 273
Liquids-Splashes, Study of 164
Lock, Automatic 106
Lock, Electric 60, 110
Lock, Electric, for a Sliding Door 89
Lock, Homemade Pneumatic 65
Lock, Lubricating 151
Lock, Secret Door 6
Lock, Spring, Protection of 72
Lock, Trunk, How to Attach 134
Lock, Window 397
Locking Several Drawers with One Lock 314
Locomotive, Miniature Electric, How to Make 165
Log, To Cross Stream on 94
Lubricant for Wood Screws 137
Lubricate Sheet Metal, To 69
Lubricating a Lock 151

M
Machinery, To Remove Grease from 216
Magazine Binder, To Make 406
Magazine Clamp, How to Make 435
Magazine, How to Bind 40, 56
Magic Box Escape 7
Magic-Electric Illusion Box 135