Developments in spectroscopic analysis and routine availability of X-ray crystallography have simplified structural elucidation of natural compounds. However, isolating bioactive components of ...

WE have failed to confirm the report 1 that the injection of several hormones into rats is followed by rapid and specific alterations in the profile obtained by counter-current fractionation of ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Lyman C. Craig (1906-1974) was a ...