C. A. BARBEii 175 



The following are tlie average lengths of joints of Saretha and Siinnabile 

 in the two seasons, in inches : — • 



1916 crop. Saretha series. 7 varieties. 3-7. 4-1, 4-5, -1-7, I'O, 4*6, 4*5, 4-5, 



4-4, 4-3, 4-2, 4-1, 4-1, 4-1, 4-0, 3-9, 3-8, 3-7, 3-5, 3'3, 3-1, 2-9, 

 2-7. 2-5,, 2-3, 2-0, 1-8, 1-5, ro. ()-5. 0-2, 0-1. 



Sunnabile series. 10 varieties. 2-(), 2-8, 3-1, 3*3, 3-3, 3*4, 3*4, 

 3-3, 3-3, 3-3, 3-3, 3-2, 3-2, 3*2, 32, 32, 32, 32, 3-1, 3-0, 2*9, 

 2-8, 2-7, 2-6, 2-5, 2-3, 2-3, 2-1, 2*1, 2'0, 2-0, 2-2, 2-0, 2-1, 1-9, 

 1-7, 1-4, 0-8, 0-4, 0-2, 0-1. 



1917 crop. Saretha series. 18 varieties. 3*4, 4*0, 4-3, 4-5, 4*6, 4'4, 4-3, 4*1, 



4-1, 3-9, 3-7, 3-5, 3-3, 3-2, 3'0, 2-9, 2-9, 2*8, 2-7, 2-3, 1-8, 1-4, 

 1-0, 0-5, 0-2, 0-1. 



Sunnabile series. 15 varieties. 2*7, 3*1, 3*3, 3*4, 3*4, 3*5, 3'5, 

 3-4, 3-4, 3-3, 3-2, 3-1, 3-0, 2-8, 2-8, 2-7, 2-4, 2-3, 2-2, 2-1, 1-9, 

 1-7, 1-3, 0-8, 0-4, 0-2, 0-1. 



But these figures convey comparatively little to the mind, andthev are 

 accordingly plotted out incurves where the black lines refer to the Saretha 

 and the red ones to the Sunnabile group. The thinner lines, in each case, 

 refer to the nine months (1917) crop, and the heavy lines to the fuller 

 grown 1916 crop. 



(4) Ctirce.s. The two Saretha curves resemble ojie another in their hi'di 

 conmiencement. their rapid ascent and steady dechne after an early maximmn. 

 The Sunnabile curves, on the other hand, start lower, have a more gradual 

 ascent to a lower, later maximum, are more tardy in. their descent and 

 ultimately cross the Saretha curves. The curves are lower, flatter and longer 

 in the Sunnabile series. In the Saretha series, the joints are longer at the base 

 aud rapidly increase in length to the 4th or 5th joint, after w^hich they steadily 

 decline to the apex. In the Sunnabile series, on the other hand, the basal 

 joints are of average length, they become longer upwards till the 6th or 7th 

 joint and after that gradually decrease in length, with occasional sections in 

 which succeedii\g joints are of equal length. There are more joints iii the 

 Suiuiabile series, so that before the immature, a])ical joijits are reached, they 

 oveitake the Saretha series and are at the end longer than these. In the 1916 

 cai\es the 23rd joints are equal and the succeeding ones in the Siuuiabile curve 

 are longer, to the end. These general characters of the curves of joint lejigth 



