2. The per cent kernel of total weight of sample recovered after first crack x 2.
3. The total per cent kernel of total weight of sample divided by 2.
4. One tenth point for each whole quarter recovered.
5. Penalty of one score point for each empty nut in the sample.
6. Penalty of ½ point for every nut with shrivelled kernel.
The makeup of this score does not differ from that previously used except in the matter of procedure with empty nuts. It is felt that the items included are weighed in a realistic manner and that difficulties in scoring have been due to methods of handling the samples rather than in the scoring schedule itself. It does not seem likely that this schedule or any schedule will be valuable unless used by experienced operators who are willing to take the precautions indicated. Also it is apparent that wherever possible more than one sample of a lot to be scored should be tested and the average score used.
REFERENCES CITED
1. MacDaniels, L. H. Report of committee on varieties and judging standards. No. Nut Growers Assn. Proc. 28: 20-23. 1937.
2. MacDaniels, L. H. Is it possible to devise a satisfactory judging schedule for black walnuts? No. Nut Growers Assn. Proc. 30: 24-27. 1939.
3. Kline, L. V., and S. B. Chase. Compilation of data on nut weight and kernel percentage of black walnut selections. Am. Soc. Hort. Sci. Proc. 38: 166-174. 1941.