LECTURE IV. 



Latin and Greek numerals. Artificial classes and orders. 



WE shall now present you with a list of Latin and Greek nu- 

 merals ; these it is necessary to commit to memory, in order 

 that you may understand the names given to the classes and or- 

 ders. It is not in Botany alone, that a knowledge of these nu- 

 merals will be useful to you ; many words in our common lan- 

 guage are compounded with them ; for example uniform, from 

 unus, one, and forma, form; octagon, from octo, eight, and gonia 

 an angle, hexagon, pentagon, &c. ; decimal, from decem, ten. 

 These few examples may show you the importance of knowing 

 these numerals, which will serve as a key to the meaning of 

 many words in common use. 



NUMERALS. 

 Numbers. 

 1. 



Latin. 



Unus, 



Bis, 



Tres, 



Quatuor, 



Quinque, 



Sex, , 



Septem, 



Octo, 



Novem, 



Decem, 



Undecem, 



Duodecem, 



Tredecem, 



Quatuordecem, 



Quindecem, 



Sexdecem, 



Septendecem, 



Octodecem, 



Novemdecem, 



Viginti, 



Multus, 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 Many. 



Greek. 



Monos, 



Dis, 



Treis. 



Tettares. 



Pente. 



Hex. 



Hepta. 



Okto. 



Ennea. 



Deka. 



Endeka. 



Dodeka. 



Dekatreis. 



Dekatettares. 



Dekapente. 



Dekaex. 



Dekaepta. 



Dekaokto. 



Dekaennea. 



Eikosi. 



Polus. 



single, 

 twice. 



THfE CLASSES OF LINNJEUS. 



These are founded upon distinctions observed in the STAMENS. 

 According to this system, all known plants are divided into 

 twenty-one classes. 



Importance of understanding Latin and Greek numerals Latin numerals- 

 Greek numerals Classes of Linnaeus, on what founded ? HJW many ? 



3* 



