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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
- Of Gunpowder &c
- A Liquid That Shines In The Dark
- 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 Difference Between Two Numbers The Greatest Of Which Is
- 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 Make Any Number Divisible By Nine By Adding A Figure To It
- To Fill A Bladder With Hydrogen Gas
- To Represent Cascades Of Fire
- To Make Several Rockets Rise Together Take Six Or Any Number Of
- To So Fill A Glass With Water That It Cannot Be Removed Without
- To Melt Iron In A Moment And Make It Run Into Drops
- 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 Extract The Silver Out Of A Ring That Is Thick Gilded So That The
- To Tell How Many Cards A Person Takes Out Of A Pack And To Specify



Another Way








Mix three ounces of saltpetre, two ounces of salt of tartar, and two
ounces of sulphur; roll the mixture up into a ball, of which take a
quantity, about the size of a hazel-nut, and, placing it in a ladle or
shovel over the fire, the explosion will resemble a loud clap of
thunder.

You will produce a much more violent commotion if you double or treble
the quantity of the last experiment; suppose you put two or three
ounces of the mixture into the shovel. For fear of accidents, it
should not be done in the house, but by placing the shovel over a
chafing-dish of very hot coals, in the open air, standing a great
distance off.

Common prudence will dictate the necessity of using great care in the
above experiments, as an accident will soon happen if a person does
not get out of the way before the composition explodes.





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