Boiling-point as related to Cltemical Composition. 183 



X. 



y- 



y calc. 



2 



117-1 



117-69 



4 



163 



164-40 



6 



205 



203-94 



8 



237 



237-85 



10 



269 



267-24 



cc 





679-57 



Sum of the errors, — *08 ; probable error of a single com- 

 parison, "91. 



For x = 2, Linnemann found y = 118°*1 ; for x = 4, 

 y = 162°*32, a value apparently much too low. For x = 6, 

 Lieben gives y=. 204*5-205 *5 ; Schorlemmer, 201-204. The 

 values given for y 8 are 237, 235-238, 236-237 : mean 236*66. 



The odd series, calculated as before, has the equation 



_ 29-824(^ + 2*79) 





v 1 + -032226 O 



■ + 2-79) 



X. 



V- 



y calc. 



1 



100-5 



100-73 



3 



146-6 



145-52 



5 



185 



185-71 



7 



223 



221-96 



9 



253-5 



254-81 



ex 





925-46 



Sum of the errors, + -13 ; probable error of a single com- 

 parison, -72. 



19. Primary Monamines. — The equation for the even series 

 has been calculated from x = 2, 4, and 8. 



30-860 Q- 1-37) 

 y ~ 1 + -027975(^-1-37)' 



x. y. y calc. 



2 19 19-11 



4 75-5 75-60 



6 124-8 126-50 



8 172-5 172-59 



10 214-53 



oc 1103-13 



The equation for the odd series is deduced from .r=3, 5, 

 and 9. 



30-367 (.t—1-28) 

 V 1 + -026026 (.r- 1-28)' 



