LVDEX. 



467 



WILLUGHCY 



"vVillughby and Ray, 142 ; death of, 143 ; 



on classification of animals, 143 

 VVohler on organic chemistry, 377 

 Wolff on metamorphosis ot plants, 383 

 Wollaston, Dr., observes dark lines in the 



spectrum, 318 



Woodward, his geological collection, 216 

 Woolsthorpe, birthplace of Newton, 147 

 Wur'.d, first voyages round the, 56 

 Worm, re.;rowth of divided parts of the, 



201 



ZOOLOGY 



"\7EAR, length of calculated, 45 

 JL Young, Dr., his life, 303 ; on inter- 

 ference of light, 304-306 ; and Frcsnel on 

 polarisation of light, 311 



'7ODIAC, or circle of animals, 19 



Zoology, Aristotle on, 16 ; Gesner on, 

 69 ; Ray and Willughby on, 143 ; Lin- 

 naeus on, 210 ; Cuvier, Sl.-Hilaire, and 

 Goethe on, 391 et sey. ; Darwin on, 426 



