SiMP.soN — A lievisi'in of I Ik; Goriiondlidai: 



29t 



another. The large specimen is from Llie Mcigui Archipelago and the 

 smaller is from the Andamans. 



The former is 400 mm. in height; the latter is 2.30 mm. in height: the 

 longest twig in the former is 220 mm., that in tlie latter 70 mm. The 

 greatest distance between branchings in the former is 120 mm.; in tiie latter 

 it is only 27'5 ram. So far, then, the measurements are proportionate ; but 

 wlien we take into consideration the corresponding diameters in tlie various 

 parts, the difierence is at once very marked. In the smaller colony the total 

 diameter of the several branches and twigs is greater than in the larger ; so 

 that, at first, it is difficult to conceive that the dwarf colony could develop 

 into a colony similar to the larger. 



Table B. 





Distance 

 between 

 brunches. 



Diameter of 

 brunches 

 at origin. 



Length of 



terminal 



twig. 



Height of 

 Colony. 



Distance 

 between 

 branches. 



Diameter of 

 branches 

 at origin. 



Length of 



tericiinal 



twig. 



Height of 

 Colony. 



Distance 

 between 

 branches. 



Diameter of 

 bran{;hes 

 at origin. 



Length of 



terminal 



twig. 





2.T 









70 



5 







70 



9 







20 









20 



b-b 







70 



9 







27-0 









20 



5-5 







65 



8 







15 



6-0 







40 



5'5 







no 



7 



. 



230 



2.5 



6 



70 



4-10 



4.3 



5-5 . 



120 



700 



100 



G 



,220 ^ 





22-5 



6 







40 



5-5 







55 



5 







22-5 



6 







40 



5 







95 



4-5 







17-5 



5-5 







50 



5 







65 



4 







12 



5-5 







Twig 



4-5 







120 



3-5 







Twig 



5 











1 





Twig 



3 





Table B gives several measurements from three colonies of different 

 sizes. One large branch has been selected and followed to the tip of the 

 colony. The various lengths represent the consecutive distances at which 

 branches arise from it. The first feature which may be seen from this Table 

 is the fact that the distances at which the diflerent branches arise do not 

 increase proportionately from the base upwards. (2) Such increase as 

 exists is more marked in the taller specimens. (3) In the very dwarf 

 colony, the distances actually diminish in the upper half. 



Let us now critically examine the measurements given in the same Table 



[2 7i'2] 



