Abstract
1. Heparin and two glycidamins were isolated from the lung tissue of pig. One of the glycidamins contained hydrolysable sulfur.
2. Heparin and the hydrolysable sulfur-containing glycidamin proved hemopoietic.
3. The glycidamin devoid ofhydrolysable sulfur inhibited isoagglutination of A erythrocytes specifically.
The costs of this work were covered by a grant by the Grant Committee for Scientific Researches of the Education Department, which is gratefully acknowledged.
