Nine hundred ten patients undergoing colectomy for colon cancer were studied retrospectively. Seventy-four cancers (8 percent) were located at the splenic flexure. The stage at presentation was no different between splenic flexure cancers and colon carcinomas at other sites. Although splenic flexure cancers had twice the incidence of obstruction as did other colon cancers and obstruction in the overall series adversely affected survival, there was no difference in survival between splenic flexure cancer patients and patients with other colon cancers.

There is an increasing interest in the development of high-protein soybeans. Since the protein content is usually measured by determining Kjeldahl nitrogen and multiplying by 6.25, the method is accurate only if the proportion of nonprotein nitrogen is small. Over 30% of the nitrogen in very immature soybeans was nonprotein nitrogen compared to 4 or 5% in mature seed. Mature soybeans were higher in nonprotein nitrogen when grown under adverse conditions. High-protein soybeans were not necessarily high in non protein nitrogen. Strains high in Kjeldahl nitrogen were high in actual protein.

Kjeldahl values that indicated 27 to 51% protein (N ✕ 6.25) were obtained in 95 soybean meal samples. A linear regression with modified dye‐binding values as independent variables was fitted to the percent protein data obtained by the Kjeldahl method. The correlation coefficient was 985. Analysis of variances of modified dye binding and Kjeldahl values showed that high drying temperature reduced the percent protein obtained by the dye‐binding method, but had little effect on the protein determined by Kjeldahl. At room temperature, there were no significan differences in values among the Kjeldahl, modified dye‐binding and Smalley soybean check series. The modified dye‐binding method can be used to estimate the protein fraction of soybean meal, or to obtain equivalent Kjeldahl values for protein estimation.