Present status of the determination of the constant of total radiation from a black body

Introduction 553 2. The bolometric method of electric compens^'ition 554 3. The thermometric method with " black " receivers 560 4. Indirect and substitution metliods 564 II. The present determination of this constant 568 1. Correction for lack of blackness of the radiator 570 2. Correction for atmospheric absorption 573 3. Summar>^5