BULLETIN OF MATHEMATICAL BIOPHYSICS V O L U M E 18, 1956
ERRATA 1. To the paper by Eugene Ackerman entitled " R e s o n a n c e s of of Biological C e i l s at Audible F r e q u e n c i e s " (Vol. 13, pp. 93-106.) One term was omitted from equation (5) on page 96. The corrected equation should read: F
+
a s sin 0 0 0
T 0sR a s sin s 0 0r s
2T --R as
Pi = Po - F
t
This l a s t term was also omitted from the last three equations on page 97 and the first four on page 98. The second equation on page 98 should read: 6O 2 "
(1
+
n P~ ) = Tn (n - 1 ) ( n + 2). n + 1 p~ pia a
The fourth equation on page 98 should read: ~o2s = 4 . 8 Ta-
3
.
Although this i n c r e a s e s the numerical values of T by a factor of three halves, it in no way alters the interpretation which was b a s e d on orders of magnitude only. 2. To the paper by Eugene Ackerman entitled "An Extension of the Theory of R e s o n a n c e s of Biological Cells: I. Effects of Visc o s i t y and Compressibility" (Vol. 16, pp. 141-50). This same error reappears again equation (14) on page 144. A term should be subtracted from the right hand side having the value 2T
iaS e~ Vri. This error was masked by a numerical error on page 148, where the simplified equation of motion is shown correctly as: 349
