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**Page 17**.
On line 4, R_{2}* = R_{2} + R_{inhom}

**Page 22**.
In Figure 1.7(d), the transitions labelled 1-2 and 1-3 are reversed and the
transitions labelled 3-4 and 2-4 are reversed. The transitions 1-2 and 3-4
are associated with the "omega"_{S} Larmor frequency and the others
are associated with the "omega"_{I} Larmor frequency.

**Page 43**.
Some questions have arisen as to how Eq. 2.83 was obtained. The fact that U is unitary provides the matrix equation U U(adjoint) = E
which can be expanded to give 4 equations in eight unknowns (U11, U12, U21, U22 and their complex conjugates). Equation 2.79 can be used to derive the matrix representation of the Ix operator in the primed frame. The matrix representation of Ix operator in the unprimed frame is given by Eq. 2.68. The two matrix representations of Ix are related by Eq. 2.77. Substituting the matrix representations of Ix into this equation and expanding it gives another four equations in the eight unknowns. Inspection of these equations should convince you that

and the result of Eq. 2.83 should follow easily. Note that the most general result is not Eq. 2.83, but the result in Eq. 2.83 times an arbitrary phase factor; the simplest result is obtained without loss of generality by assuming the phase factor is 0.

**Page 93**.
In Equation 2.282, the operator representing the 90 pulse should be
S_{-y}, rather than I_{-y}.

**Page 193**.
The last term in Equation 4.7 contains an extra factor "pi" in the
first trigonometric term. This term should be sin("pi"J_{IR}"tau").

**Pages 223-224**.
The dephasing of magnetization by three orthogonal gradients is stated to depend
upon 1/("gamma"^{3} G_{x} G_{y} G_{z} v t^{3}). This is the case for independent gradients and a rectangular
solid geometry. The efficacy of orthogonal gradients is reduced in other sample geometries
(including cylindrical). Also, non-ideal effects, such as B_{0} inhomogeneity and susceptibility
changes at the edges of a sample, have not been considered in the treatment of gradients in the text.
A detailed discussion of sample geometries and non-ideal effects can be
found in P.B. Kingsley, J. Magn. Reson. Ser B 109:243-250 (1995).

**Page 264**.
In the third line prior to Equation 5.62, the refernce to Equation 5.57 should
be to Equation 5.56.

**Page 267**.
In Table 5.2, the expression for c(t) for the dipolar interaction should contain a leading negative sign.

**Page 281**.
In equation 5.103, the numerical factors should be 3/4 in the middle part
and 3/160 in the right part. The denominator of the right-hand part should
contain a factor r_{IS}^{6}, not r_{IS}^{2}.
The result of the numerical calculation in the second line following the
equation is 0.031 s^{-1}.

**Page 283**.
In Equation 5.109, the term J("omega"_{0}) should be j("omega"_{0}).

**Page 289**.
The numerical factor in the denominator of both parts of Equation 5.116
should be 10 rather than 40.

**Page 441**.
In Figure 7.10, the modified phase cycle for part (a) is incorrect. The receiver phase cycle should be x, -x only.

**Page 463**.
In Figure 7.21, the carbon-13 rf pulse prior to the t3 period
should have phase "psi 5".
The corrected figure is shown below. A
postscript version of the figure is available for download.

**Page 485**.
In Figure 4.27d, the maximum value of t1 is limited to T - 2 delta_1 because the15N 180 pulse cannot enter the delta_1 period. This limitation can be avoided by reversing the order of pulses in the constant time period in a manner analgous to Figure 4.27c:

provided that the spectrometer pulse programmer is capable of passing the 180(CO) pulse from the delta_1 period into the remainder of the constant time period when the 1H decoupling is turned on.

**Page 492**.
In the second last line of Equation 7.86,
the variable t2 should be t1.

**Page 494**.
In Figure 7.32, the first line of the figure caption is missing. The line
reads:

**Page 513**.
In Figure 7.42, the last carbon-13 "alpha" and carbonyl pulses should
be exchanged.
The corrected figure is shown below. A
postscript version of the figure is available for download.

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Updated 9/25/97 by Arthur G. Palmer (agp6@columbia.edu)