1. precision are described. Each is illustrated nu- BLISS C. I. 1952 Thestatistics of bioassay with
2. merically. The first calculation is the arithmetic equivspecial reference to the vitamins. Academic Press Inc. New York N. Y.
3. alent (with extensions) of the traditional inter- BLISS C. I. 1956a Confidence limits for measur
4. polation in a plotted Standard curve. Methods
5. are described for computing the equation of the ing the precision of bioassays. Biometrics 12 in press.