Hockin's Short Sketch for the Tyro, 16.
Hunt's specimens, 41. 182.
his letter, 524.
hydrosulphite of soda baths, 230.
iodized paper, 62.
iodized solution, 182. 230. 254. 310.
light in cameras, 525. 548.
Lyte on collodion, 156. 333.
Lyte's new instantaneous process, 570.
Mansell (Dr.), his operations, 134. 182. 207.