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- Never-yielding Cement
- Aigrettes
- Composition I Saltpetre Two Ounces Flour Of Sulphur One Ounce
- The Three Magical Parties
- Chemical Illuminations
- The Deforming Mirrors
- A Water Which Gives Silver A Gold Colour
- Bottles Broken By Air
- A Liquid That Shines In The Dark
- Of Gunpowder &c
- Invisible Ink
- Another
- A Lamp That Will Burn Twelve Months Without Replenishing
- A More Powerful Fulminating Powder
- Another Way
- Inflammable Phosphorus
- Another Way

Least Viewed

- 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



Two Figures One Of Which Blows Out And The Other Re-lights A








Candle.

Make two figures, of any shape or materials you please; insert in the
mouth of one a small tube, at the end of which is a piece of
phosphorus, and in the mouth of the other a tube containing at the end
a few grains of gunpowder; taking care that each be retained in the
tube by a piece of paper. If the second figure be applied to the flame
of a taper, it will extinguish it; and the first will light it again.





Next: A Vessel That Will Let Water Out At The Bottom As Soon As The Mouth

Previous: To So Fill A Glass With Water That It Cannot Be Removed Without



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