Correction to: Spinor norms of local integral rotations. II (Q762196)

One consequence of the 2-adic spinor norm calculations appearing in the original paper [Pac. J. Math. 61, 71-86 (1975; Zbl 0314.10016)] was a sharpening, given in Theorem 4.2, of the existing bounds on the power of two dividing the reduced discriminant of an indefinite quadratic \({\mathbb{Z}}\)-lattice having class number exceeding one. The bounds stated in that theorem are not best possible. In this note calculations in the original paper are shown to give an improvement of Lemma 4.4, which in turn produces the desired best possible bounds.