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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

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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 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 Represent Cascades Of Fire
- 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
- 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 So Fill A Glass With Water That It Cannot Be Removed Without
- To Tell How Many Cards A Person Takes Out Of A Pack And To Specify



The Magnifying Reflector








Let the rays of light that pass through the magnifying glass in the
shutter be thrown on a large concave mirror, properly fixed in a
frame. Then take a third strip of glass, and stick any small object on
it; hold it in the intervening rays at a little more than the focal
distance from the mirror, and you will see on the opposite wall,
amidst the reflected rays, the image of that object, very large, and
beautifully clear and bright.





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