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Most Viewed- Never-yielding Cement- The Deforming Mirrors - Aigrettes - A More Powerful Fulminating Powder - A Liquid That Shines In The Dark - Balloon Wheels They Are Made To Turn Horizontally: They Must Be - A Lamp That Will Burn Twelve Months Without Replenishing - To Make Artificial Coruscations - Another Way - Artificial Illuminations - The Magnifying Reflector - The Hour Of The Day Or Night Told By A Suspended Shilling - Another Invisible Green Ink - Another - 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 Least Viewed- Stars With Points- Winter Changed To Spring - To Take Impressions Of Coins Medals &c - To Tell A Person Any Number He May Privately Fix On - The Boundless Prospect - Vegetable Air-bubbles - The Electric Aurora Borealis - To Tell The Number Of Points On Three Cards Placed Under Three - 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 Divining Card - The Card In The Opera Glass - To Make Pictures Of Birds With Their Natural Feathers - To Diversify The Colours Of Flowers - Caduceous Rockets They Are Such As In Rising Form Two Spiral - Swans And Ducks In Water - The Mysterious Writing |
Of Painting The GlassesYou first draw on a paper, the size of the glass, the subject you mean to paint; fasten this at each end of the glass with paste, or any other cement, to prevent it from slipping. Then with some very black paint mixed with varnish, draw with a fine camels'-hair pencil, very lightly, the outlines sketched on the paper, which, of course, are reflected through the glass. Some persons affirm that those outlines can be more readily traced with japan writing ink, and a common pen with a fine nib; but this, even if it succeeds in making a delicate black outline, is sure to be effaced by damp or wet. It would improve the natural resemblance, if the outlines were drawn with a strong tint of each of the natural colours of the object; but in this respect you may please your own fancy. When the outlines are dry, colour and shade your figures; but observe, to temper your colours with strong white varnish. A pleasing effect will be produced, if you leave strong lights in some parts of the drapery, &c., without any colours. The best colours for this purpose are transparent ones; opaque or mineral colours will not do. The following are in most repute. For Pink and crimson Lake or carmine. Blue Prussian blue. Green Calcined verdigris, or distilled ditto. Yellow Gamboge. Next: To Represent A Storm At Sea Previous: The Solar Concerto
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