No. 4.] TOBACCO GROWING. 41 



Question. Did the fish make any darker leaf or darker 

 quality ? 



Dr. Jenkins. No, there was very little difference in the 

 wrappers. The burning quality, texture and all that sort 

 of thins were better than cotton-seed meal. 



Question. Your stable manure is not horse manuie? 



Dr. Jenkins. No, we could not get the clear New York 

 horse manure, though there was a large proportion of horses 

 in the stables which furnished it. 



Prof. W. P. Brooks (of Amherst). I know very little 

 about tobacco, either through experience in raising it or 

 using it, but one or two thoughts have occurred to me upon 

 which I would like light. He has said that the quality of 

 the plots differs from year to year on the same fertilizer. 

 I am quite ready to believe that. It is not only possible, 

 but probable. But a point on which I want light is, are 

 the differences between the tobacco sufficiently marked to 

 make the judgment certain? Another point is, has the 

 tobacco been judged each year by the same individuals ? In 

 the case of that which ranks 1st one year and 14th another, 

 I have wondered whether the difference has been due to 

 personal equation. 



Dr. Jenkins. I am glad these questions have been raised. 

 I ought to have said the difference between the plots as 

 graded at times was very small, so that in some cases it was 

 difficult to say whether it should be graded 1st or 5th, but 

 there was a great difference between that which was best 

 and that which was worst. It was the only method that we 

 could follow to have them graded strictly according to their 

 relative value. Sometimes there would be as many as five 

 or six which the expert would say were so nearly alike that 

 it was very difficult to distinguish between them ; that 

 another man might make a different judgment. It was done 

 each year by the same man, so the personal equation is 

 eliminated. It is very difficult to say to what the differ- 

 ences were due. 



Mr. Geo. P. Smith (of Sunderland). How many lan- 

 terns or oil stoves would be required for the crop of an acre 

 of tobacco ? 



