C 226 3 



large ; as alfo the firft attempt to form the fpe- 

 cific charadler of the Serpentes order, from the 

 " different number of the rings and fcales of the 

 " body and tail, taken conjointly." Former 

 authors generally had recourfe to colour alone in 

 diftinguilhing thefe animals, which was found at 

 length to be too unliable, and had given rife to a 

 moft enormous multiplication of the fpecies. This 

 mode of diftin6lion has been fmce adopted by 

 others, and is retained in the Syjlema Nature. 



6. PLANTi^: Martino-Burserian^. Martin. 



1745. 



J. Burfer^ a moft diligent difciple and friend of 

 Cafpar Bauhine^ and afterwards profefTor of phy- 

 fic at Sora^ in the kingdom of Naples^ who had 

 travelled almoft all over Europe, and had particu- 

 larly fought for rare plants in the. Alps, had col- 

 ledted in thefe journeys an Hortus Siccus, contained 

 in 25 volumes, which, after various fates, was 

 given by M. Coijet to the univerfity of UpfaL 

 The purport of this tradt is to illuftrate the moft 

 rare plants contained in this collection, and fuch 

 particularly as were obfcurely known to the collec- 

 tor, and to add to thefe the fpecific names, ac- 

 cording to the principles of the Linn^an method : 

 with this view 240 fpecies are here enumerated. 



7. FIortus Upsaliensis. S.Nauckr, 1745. 



Botanical gardens began to be founded in Eu- 

 rope, fo early as the middle of the fixteenth century: 



the 



