NOTICES OF BOOKS. 185 
NOTICES OF BOOKS. 
HEYTLEUR, Lupoviovs, Eques de; Specimen FLORÆ ÜRYPTOGAMÆ 
Vallis Arpasch Carpate Transylvani. Vienna. 1853. Imp. folio. 
(Coloured plates, executed in Nature's printing, **Naturselbstdruck."") 
The FERNS of Great Britain and Ireland ; by Tuos. Moors, F.L.S. ; 
edited by Jonn LINDLEY, Ph.D., F.R.S., etc. Imp. folio. Part I. 
Nature-printed by Henry Bradbury. London. 1855. 
It was, we believe, early in 1853 that M. Louis Auer, of the 
Imperial Printing Office at Vienna, was stated to have patented a 
process, invented by himself, in conjunction with Mr. Andrew Worring, 
Overseer of the same establishment, “for creating, by means of the 
original itself, in a swift and simple manner, plates for printing copies 
of plants, lace, etc., containing the most delicate profundities or eleva- 
tions, not to be detected by the human eye.” In a pamphlet published 
at Vienna, Mr. Auer further relates :—“ If the original be a plant, a 
flower, or an insect, a textile or in short any lifeless object whatever, 
it is passed between a copper plate and a lead plate, through two 
rollers that are closely screwed together. The original, by means of 
the pressure, leaves its image impressed with all its peculiar delicacies 
—with its whole surface, as it were—on the lead plate. If the colours 
are applied to this stamped lead plate, as in printing a copper-plate, a 
copy in the most varying colours, bearing a striking resemblance to the 
original, is obtained by means of one single impression of each plate. - 
If a great number of copies are required, which the lead-form, on ac- 
count of its softness, is not capable of furnishing, it is stereotyped in - 
ease of being printed at a typographical press, or galvanized in case of — 
being worked at a copper-plate press, and the impressions are taken from : 
the stereotyped, or galvanized plate, instead of from the lead plate." * 
* See ‘ Atheneum’ for 1853, p. 1433. At p. 1486 of the same year of the * Athe- 
neum,’ Messrs. Bradbury and se assure us that “as far as Austria is concerned, 
this invention was first brought into use by Mr. Worring, in 1852, but that in the — 
year 1851, Mr. Ferguson Branson read before the Society of Arts a report of a pro~ | 
cess identically the same as that claimed by the Austrian patentees, and even pro- — 
duced printed specimens to illustrate more fully the true meaning of this invention.” 
These gentlemen (Messrs. Bradbury and Evans) go on to say that the process, for the — 
introduction of which into this country they have taken out a patent, is in many parti- — 
culars a material improvement upon Mr. Branson’s invention, as well as upon that in — 
use at Vienna. 
VOL, VII. ?5 
