Abstract
1. Water-soluble, high-molecular components (crude) were prepared from placentae and embryos.
2. The skin reaction of the substances was examined which pointed to the fact that they are generally capable of producing a larger redness in cancer patients than in the non-cancerous. Those of embryos showed also the positive test for pregnancy.
3. The neutral carbohydrate fraction of embryo was found to contain no glucosamine nor mannose.
Thanks are due to the Education Department, which gave through the Grant Committee for Scientific Researches a grant for defraying the expenses of this work. H. Masamune.
