EXPERIMENT STATION REPORT. 225 



counts for some wide differences in size that appear in Plate II. 

 At I is shown a sample ear grown in the first block and has more 

 or less starch in the grains, many of them being nearly smooth. 

 The ear at 2 is from the block of sweet "Malamo" and shows no 

 signs of starch in the exceedingly wrinkled grains. No. 3 is a 

 corresponding ear grown from seed from the same packet as 

 the last, as were also ears 6 and 9, all of which are quite alike 

 in general appearance and to the present purpose show no flinti- 

 ness. The ears 4 and 5 are samples from one row that was 

 planted from the same packet as the block that produced ear i 

 by isolation. In like manner, ears 7 and 8 represent the second 

 flinty row. One of the most striking features of the test is the 

 much larger size of the ears grown from the flinty seed which 

 may be explained by their parentage being possibly of a stronger 

 strain from which the ears have been selected for the past two 

 years. The four large ears all show marked differences that 

 might be the starting-points for sub-strains among these flinty 

 sorts ; thus ear 5 is quite unlike ear 8, particularly in the amount 

 and disposition of the starch. 



The chief point of the present test is that, presuming that there 

 was free interchange of pollen, there should be no more indica- 

 tion of starch formation (fiintiness) in the ears grown along- 

 side of the flinty-eared plants than in the block that had only 

 its own strain for pollination. In other words, there was no 

 suggestion from this test that anything like the immediate ef- 

 fect expected of starchy-grained corns upon sweet sorts obtains 

 when the flintiness is of the sort imder consideration. A con- 

 tinuation of the test, using the grains of the sweet ears produced 

 close to the flinty ears this year may throw light upon a differ- 

 ence in breeding power between the two kinds of flintiness (or 

 starchiness) in question. 



SECOND GENERATION OF CROSS OF FIELD \VHITE DENT UPON 

 DWARF YELLOW POP. 



Three blocks were planted from the same ear of the 

 above cross of white field and yellow pop corns; (i) 

 with white grains, (2) with lemon yellow, and (3) with 

 orange grains respectively. The .unusually 'poor conditions did 

 not favor satisfactory results but it is evident that there is much 

 less regularity of form, size, etc., of ears in the second than the 

 first generation. In order to show this, Plate III has one of 

 the ears of the first generation at 2 along with the two parents, 

 "White Dent" at i and "Yellow Pop" at 3, while to the right 



