(157 ) 
and comparing with them the averages of the 33 cases of minor 
rotation in Table VI, we get the results shown in Table X. 
We see here that the changes in the position of A and & 
are very slight, in fact within the sum of the probable errors 
of the averages. On the other hand the changes in B and 
C are almost identical with those of the corresponding leaf- 
lets in Parthenoctssus. FF. 9 gives the changes in diagram- 
matic form. 
(X 1%.) Lupinus albus (minor rotations only). Average nor- 
mal Na aan Roos and average operated (dotted lines) position and 
length of leafle 
To sum up the change of position in the leaflets as a result 
of the removal of one of their number we find, first, fat 
there zs a movement tending to close up the large interval left 
by the operation and, second, that this movement ts almost 
entirely confined to the two leafiets left in an unsynimetrical 
position as a direct result of the operation. Further, in these 
two leaflets the movement in the one nearest to the cut is 
approximately twice as great as in the other, a condition 
which in the five-leafed forms would lead to an equal increase 
in the intervals AB and BC if leaflet A remained stationary, 
