and Description of the Eidograph. 421 
King and the Academy. In this state it was taken up by Apams 
(the father of Grorcr) the English Instrument-maker, who gave 
it nearly the form it has at the present day. Monrucza having 
said that the preface to ScHErNER’s book is very curious, | 
was desirous to see the work. It must be rare, for I could 
not find a copy in any of our Edinburgh public libraries. At 
length I found one in the Catalogue of the University Library 
of St Andrew’s, from which, by courtesy, it was lent tome. I 
found the preface, or rather the first chapter, very curious indeed. 
I have shewn to several friends, members of this Society, a trans- 
lation of it, who entertain the same opinion ; and it has been sug- 
gested, that in this communication, in which I propose to de- 
scribe an instrument for a like purpose, I may not improperly 
give the most interesting part of Scnerer’s own account of his 
invention. 
Translation of a part of the first Chapter of Scheiner’s work, enti- 
tled “ Pantographice, seu Ars delineandi res quaslibet per Pa- 
rallelogramum lineare seu Cavum, Mechanicum, mobile,” &c. 
« Being, in the year 1603, a professor in the celebrated Ger- 
man Academy at Dillingen, where I taught in general polite 
literature, but sometimes also mathematical science, I contracted 
a friendship with an excellent painter named Grorcivs, a man 
lame and deformed, from whom I learned some secrets of the 
arts and of nature, and communicated some discoveries of my own 
in return. 
« This person boasted to me of possessing an admirable inven- 
tion, namely, a compendious method of delineating any object, 
most easy, sure, and speedy to practise ; so that whoever would 
take a drawing from any original, did it by regarding the origi- 
nal alone, without needing to look at the copy he made, and yet 
without erring in his delineation by one hair’s-breadth. He de- 
3H 2 
