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 ...

WE make a distinction between preparative and the usual counter-current distribution. By the latter we mean, of course, the very efficient method of separation based on extraction, devised chiefly by ...

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 ...