Prof. Drake: I have some. At first I didn't but afterwards I used some barn yard manure and some nitrate. Of late years I put some bone meal around the roots when I plant them.
The President: Any further discussion of this interesting paper?
Dr. Deming: Do you use the hammer in cracking entirely?
Prof. Drake: Yes, sir.
Dr. Deming: Why do you not use the mechanical cracker? Do you not think the commercial value of the black walnut is best tested by using a mechanical cracker? It will never be cracked with a hammer.
Prof. Drake: That point is well taken. In the first place I didn't have a commercial cracker but plenty of hammers. Another thing, the commercial crackers are being developed. Unless we all try them out in the same way there would be no value in it. I thought it would be more accurate to use a hammer.
The President: Professor A. F. Yeager is unable to be with us. Therefore, Dr. Colby will read his paper.