158 THE RISE AND PROGRESS OF PHOTOGRAPHY. 
needle point ; seid beautiful designs and effects are produced by 
these means, and one of the chief uses consists in the fact that an 
artist on the staff of an ‘Mnetested newspaper takes out wit 
s dra g them, sends thsiea home to the photo- Some 
p nie or, mee a a hours produces a perfect m 
electrotyped for printing with the text, or plnteslithogeegsied if 
required to form a collection, or, if preferred, a en 
made for printing as engraving. This process is reall 
useful and advantageous, as the cost is regulated by ws size wal 
the plate, and not the amount of work upon it; thus a most 
og mg plate costing perhaps £20 or £30 sterling 66 engrave 
an be done for £2 or £3. 
The next process I shall speak of, is that known as the “ fatty 
ink process,” or more dager s the “Albertype” “ Heliot type” 
“ Obernetter process” or e mechanical process.” All 
these toh one and the same pc cess, the same result being 
arrived at by different Prana we, and are all based on the early 
experiments of Poitevin and Tessié de Mathe ey. A glass or 
metal plate is eae with vatutias and sensitized in the usual 
y 3 n dry, it is “exposed behind a negative, until = the 
details are Visible it is now placed i in cold water, when 
2g 
to the a of the 1 light, and emaboanaiy chan 
e water; 
des You will 
this process is sletiey allied 0. -eikaeregiey, aa Rantine 
as in the printing it has to be treated in almost the same way 
as ee stone. "There is cwvee this difference: The 
