INDEX TO VOLUME 91 



Page 



Let Cheese Be Your Meat Substitute 531 



How You Light Your Cigar in Italy 537 



The More You Pay for Your Clothes, the More 



They Suffer on the Clothes Line 569 



And These Are Not Leather? 571 



Where Violin and Tennis Strings Come From . . 581 

 A Convenient Device for Keeping Your Razor 



Blades Clean 584 



A New Zinc Product Which Is a Substitute for Tin- 



foil . . 585 



To Keep Out Burglars Leave Your Key in the Door 591 



The Over-All Has Entered the Fashion Sheets 591 



Is This the Secret of Curious Finger Prints?. . . . 594 

 The Ivory Pie-Crust Trimmers of New England. . 595 



Pack Your Water-Proof in Your Bog 596 



The Mechanical Cigarette-Filler. '. . 646 



His Drum Is Made of Human Skin and His Trum- 

 pet of a Thighbone 647 



The Favorite Pocket-Knife of the Jackie* 647 



A Machine That Moistens the Indoor Air 664 



Filtering the Snores Out of Sleep 665 



A Space-Saving Display Fixture 668 



How to Store Flour to Prevent It from Molding. . 672 

 Efficiency as Applied to an Ink-Bottle Holder. . . . 678 



Fuel from Waste Paper 679 



A Fountain Ink-Eradicator 679 



You Can't Spill Ink When Pouring from This Bottle 681 



Lucky and Unlucky Telephone Numbers 687 



Holding Crowds at Store Windows 693 



Dolls That Proclaim the Fashions 693 



A Novel Tobacco Pouch 700 



Dogs I nstead of Horses 702 



A Pad and Pencil Attached 703 



A Xylometer 704 



A Time-Saving Measuring Board 707 



Transforming the Bow Leg 710 



Page 



Flushing Sidewalks Without Disturbing Cars 710 



A Self-Filling Pipe 717 



Iron Signs Give Good Advice to Tourists 724 



Showing House Numbers on Street Signs at Corners 725 



Leather from the Sea 726 



Why Anthracite Coal Lands Differ in Price 731 



This Kerosene Lamp Has a Horizontal Wick 751 



"Woodman, Spare That Tree," 755 



A Device for Keeping Bananas Clean 804 



The War Price on Monkeys 804 



A Badge Which Tells the Story of Your Life 807 



The Largest Ball of Twine 824 



The Most Expensive Coat in All the World 834 



How the "Ship of the Desert" Is Anchored When 



the Caravan Rests . 831 



Is This the Secret of the Earth's Magnetism 843 



Rice for Face Powder 854 



A New Method of Learning to Play the Violin. . . 860 



Protecting Your Shoes from Mud 861 



A Palace of Corn 874 



Wealth in Scrap Piles 883 



Wearing Spikes on Your Feet to Prevent Slipping 



on Ice 889 



The "Complex Dinner" Container for Long Trips. 900 

 Pull Out a Cigarette and a Lighted Match with 



One Motion 901 



We Boycott the Chinese but Not His Hair 904 



To Open a Stubborn Knife-Blade, Throw It from 



You 907 



Arrowhead Lamp Posts Mark the Arrowhead Trail 908 

 Filtering Out the Harsh Tones from a Phonograph 91 I 

 We Use Eighteen Times as Much Light as Did 



Our Great-Grandfathers 914 



Matches? Take One at a Time, Please 914 



Sharpening Your Pencil Without Soiling Your 



Fingers 918 



