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- Never-yielding Cement
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- The Three Magical Parties
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- A Water Which Gives Silver A Gold Colour
- Bottles Broken By Air
- A Liquid That Shines In The Dark
- Of Gunpowder &c
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- A Lamp That Will Burn Twelve Months Without Replenishing
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- The Leech A Prognosticator Of The Weather
- To Make Squibs And Serpents
- To Give Silver-plate A Lustre
- To Show The Spots In The Sun's Disk By Its Image In The Camera
- To Load Air Balloons With Stars Serpents &c &c When You Fill
- To Find The Number Of Changes That May Be Rung On Twelve Bells
- To Tell The Number Of Points On Three Cards Placed Under Three
- To Find The Difference Between Two Numbers The Greatest Of Which Is
- To Represent Cascades Of Fire
- To Make Any Number Divisible By Nine By Adding A Figure To It
- To Fill A Bladder With Hydrogen Gas
- To Make Several Rockets Rise Together Take Six Or Any Number Of
- To Melt Iron In A Moment And Make It Run Into Drops
- To Extract The Silver Out Of A Ring That Is Thick Gilded So That The
- There Must Also Be A Glass Planned To Rise Up And Down In The Groove A B And So Managed By A Cord And Pulley C D E F That It May
- To Tell How Many Cards A Person Takes Out Of A Pack And To Specify
- The Power Of Water When Reduced To Vapour By Heat



Artificial Rain And Hail








Make a hollow cylinder of wood; let it be very thin at the sides,
about eight or ten inches wide, and two or three feet diameter. Divide
its inside into five equal parts, by boards of five or six inches
wide, and let there be between them and the wooden circle, a space of
about one-sixth of an inch. You are to place these boards obliquely.
In this cylinder put four or five pounds of shot that will easily pass
through the opening. When turned upside down, the noise of the shot
going through the various partitions will resemble rain; and if you
put large shot, it will produce the sound of hail.





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