Steels are known by certain tests. Early tests were more or less crude, and depended upon the ability of the workman to judge the grain exhibited by a freshly broken piece of steel. The cold-bend test was also very useful--a small bar was bent ... Read more of Properties Of Steel at Steel Making.ca

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- Never-yielding Cement
- The Deforming Mirrors
- Aigrettes
- A More Powerful Fulminating Powder
- A Liquid That Shines In The Dark
- A Lamp That Will Burn Twelve Months Without Replenishing
- Balloon Wheels They Are Made To Turn Horizontally: They Must Be
- To Make Artificial Coruscations
- Artificial Illuminations
- Another Way
- The Magnifying Reflector
- Another
- The Hour Of The Day Or Night Told By A Suspended Shilling
- Another Invisible Green Ink
- To Spin Sealing-wax Into Threads By Electricity
- Easy And Curious Methods Of Foretelling Rainy Or Fine Weather
- A Powder Which Catches Fire When Exposed To The Air

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- Stars With Points
- To Take Impressions Of Coins Medals &c
- To Tell A Person Any Number He May Privately Fix On
- Vegetable Air-bubbles
- To Tell The Amount Of The Numbers Of Any Two Cards Drawn From A
- To Tell The Amount Of The Numbers Of Any Three Cards That A Person
- The Card In The Opera Glass
- To Make Pictures Of Birds With Their Natural Feathers
- The Mysterious Writing
- Winter Changed To Spring
- The Boundless Prospect
- The Miraculous Portrait
- The Electric Aurora Borealis
- The Revolutions Of The Heavenly Bodies Forming What Is Called The Electrical Orrery Let A Single Wire With The Extremities Point
- To Tell The Number Of Points On Three Cards Placed Under Three
- How To Make The Pass Hold The Pack Of Cards In Your Right Hand So
- The Divining Card

The Long Card Another Stratagem Connected With The Performance Of

many of the following tricks, is what is termed the Long Card; that
is, a card, either a trifle longer or wider than the other cards, not
perceptible to the eye of the spectator, but easily to be
distinguished by the touch of the operator.

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