R H. CoMPTON 68 



there were 228 more RH than LH individuals: and among 2881 

 seedlings from the even rows there were 243 more LH than RH 

 individuals. There can be no doubt that so large a divergence from 

 the mean ratio unity is significant : especially as in the majority of the 

 Maize cobs considered separately a similar result was obt-ained. 



Further, individual rows of seed gave the same excess of LH or RH 

 ofispring according as they w^ere even or odd. There is no need to give 

 the data for all the cobs ; but one set of results will be quoted in full as 

 an example of the phenomena encountered. The numbers shown in 

 Table VI were yielded by cob XIII, and may be taken as typical of 

 those given by the others ^ 



The reference numbers of the rows in the first column are arbitrary : 

 No. 1 was a casually selected odd row, No. 2 the even row of the same 

 pair, and so on all round the cob in the direction of the arrow in 

 Diagram 3. The results for even and odd rows are displayed in 

 different columns for the sake of clearness. It will be seen that five of 

 the eight odd rows gave an excess of RH seedlings, and that seven of 



^ In this particalar cob the seeds of each row were sown in order of position, with the 

 object of determining whether there was any farther regnlarity in the distribation of 

 rights and lefts over its surface : no such pattern, however, ooold be detected. 



