viii LIST OF PLATES. 



FACING PAGE 



XXXIII. NEWTON'S Opticks (1704): title of the first edition 162 



XXXIV. ORTEGA'S Arismetica y Geometria (1552) : woodcut title .... 170 

 XXXV. OVENDEN'S Description of a Machine to travel without Horses (1774) : plate 



illustrating a forerunner of the bicycle ....... 171 



XXXVI. PACIOLI'S Summa de Arithmetica (1494) : specimen of text . . . .172 



XXXVII. POBTA'S Spiritali (1606) : specimen of text with woodcut of his steam-engine . 181 

 XXXVIII. RAMELLI'S Diverse et Artificiose Machine (1588) : specimen plate . . 189 



XXXIX. RATHBORNE'S Surveyor (1616) : engraved title showing surveying instruments 196 

 XL. RECORDE'S Castle of Knowledge (1556) : first page of text with large woodcut 



initial , 200 



XLI. RONALDS'S Description of an Electrical Telegraph (1823) : specimen plate, 



illustrating the first practical electric telegraph apparatus .... 201 

 XLII. SALTONSTALL'S Navigator (1636) : 4 specimen pages of text, etc. . . . 206 



XLIII. SACRO Bosco's Sphsera Mundi (1526): woodcut title 211 



XLIV. SCHOTT'S Mechanica Hydraulico-Pneumatica (1657): title, and plate showing 



his air-pump 217 



XLV. STEVINUS'S Beghinselen der Weeghconst, etc. (1586) : title, and 3 specimen 



pages of text with woodcuts 232 



XL VI. STEWART'S Description of a Machine (1767) : plate showing the first machine 



converting rectilinear into rotary motion ....... 233 



XLVII. TAGLIENTE'S Considerando . . . (1525) : title and specimen page of the earliest 

 complete work on bookkeeping. 



Lo presente Libro . . . (1525) : engraved title and plate of one of the 



earliest works on calligraphy 248 



XL VIII. TOURNACHON'S A Terre et en 1'Air (1864) : 3 plates showing his self-feeding 



balloon 249 



XLIX. Portrait of TORRICELLI by Anichini 250 



L. VALTURIO'S de Re Militari (1532) : specimen of text with large woodcut of a 



curious cannon 254 



LI. VITRUVIUS. De Architectura (1567) : specimens of 4 illustrations of water- 

 wheels and a mill ........... 259 



LII. WAGENAER'S Mariner's Mirror (1588) : engraved title 263 



LIII. WILKINS'S Mathematicall Magic (1648) : 4 specimens of text and illustrations 264 

 LIV. WORCESTER'S Century of Inventions (1663) : title and 3 specimens of text . 280 

 LV. ZONCA'S Novo Teatro di Machine (1607): plate showing his siphon for 



perpetual motion ........... 281 



LVI. Portrait of DR. THOMAS YOUNG 284 



LVII. AGRICOLA. De Re Metallica (1556) : title and 3 specimens of illustrations . 285 

 LVIII. APIANUS. Cosmographia (1550): title, specimen illustration, and map 



showing America ........... 300 



LIX. Instrument Buch (1533): title with large woodcut, showing astro- 

 nomical instruments 301 



LX. BLUNDEVILLE his Exercises (1597) : title and 3 sub-titles with woodcuts . 320 



LXI. BOETHIUS. Arithmetica (1488): first leaf of text 321 



LXII. BORGO'S Libro de Abacho (1484 and 1488): 4 specimens of text of the first 



and second editions ........... 328 



LXIII. BOURNE'S Inventions or Devices (1578): litle and three specimens of text . 329 



LXIV. Portrait of the HON. ROBERT BOYLE, F.R.S 316 



LXV. BRADWARDINE'S Geometria Speculativa (1495): specimen of text with geo- 

 metrical figures ........... 317 



