Refraction of Light。 20
Roach's Tripple Compound of Bromine。 67
Sand Clock。 70
Sealing paper。 To make 77
Second operation。 94
Sensitive。 ib
Silver。 Bromide of 35
Cloride of 31
Iodide of 32
Ioduret of 33
Nitrate of 89
Oxide of 28
Solution of Chloride of 59
Sixth operation。 74
Soda Hyposulphite of 72
Solar and Stellar Light。 21
Still for purifying water; 54
Submitting the Plate to the action of Light 69
Synopsis of Mr。 Hunt's Treatise on Light; 29
Talbotype Camera。 50
Theory on Light。 14
Third operation。 69
Wall Flower。 37
End
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