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I have drawn tliem to a small plat of wheat sown in a secluded corner 

 of my garden, in the midst of town, fully half a mile from any wheat 

 fields. But, be this as it may, a second brood of larvae in June would 

 be rather difficult to sustain, as the puparia of the earlier part of the 

 month are known to remain in that stage until September. Neither 

 have I been able to secure any better evidence of a brood originating in 

 volunteer wheat during July aud August. Puparia are to be found 

 every year from one end of the State to the other in this volunteer 

 wheat, but here in Indiana I have never found these sufficiently numer- 

 ous to imply a distinct brood. Professor Forbes and his assistants, 

 working in Illinois, appear to have a greater confidence in this extra 

 brood than myself, although, as will appear farther on, our experiments 

 were carried on the one perfectly independent of the other, though only 

 a few miles apart. 



My attention has been called to the condition of this field near Prince- 

 ton, by Honorable Samuel Hargrove, member of the board of trustees of 

 Purdue University, and also a member of the State Board of Agricul- 

 ture, who willingly agreed to further aid in the investigations by sow- 

 ing for me plats of wheat at intervals of about 2 weeks, beginning as 

 soon as possible after harvest. Being detained in Louisiana myself 

 until nearly the 1st of August, and the weather being exceedingly dry, 

 no plats were sown until August 4, 1887, followed by another on August 

 22, and a third September 5. These were sown on one of Mr. Hargrove's 

 farms, about 10 miles northeast of Princeton. 



The first two sowings, owing to the drought, came up sparingly and 

 about the same time. The third was also affected by drought, and did 

 not come up until about the 1st of October. These plats were sown 

 along the lower edge of a high, rolling stubble field, which had been 

 too dry to plow, and in which I had found an abundance of flaxseeds 

 the preceding June. 



These plats were examined by me on October 8. The two earlier- 

 sown plats had thrown up a good growth of plants, which had tillered 

 finely, being along a low ravine. On these plats I found a number of 

 larvse, which were nearly or quite grown, and a less number of flaxseeds, 

 one of which was empty. Besides these, the plants were literally alive 

 with very young larvse, so young, in fact, that they had not yet lost 

 their reddish tint. The third plat had sent up the normal number of 

 plants, which were now in the second leaf. These plants had not ap- 

 peared in time for the earlier deposited eggs, but were even more seriously 

 infested by young larvae than the plants of the two earlier plats. One 

 of the plants from the last plat is before me, and contains twenty-six 

 young larvse, all of which must have hatched from the eggs only a few 

 days prior to my observations. Now, from whence did the progenitors 

 of these young larvae originate 1 Most assuredly not from volunteer 

 wheat, because there was none. Not from my earlier-sown plats, else 

 these would have shown the effect. There are, it seems to me, but two 



