  Let $f$ be an indefinite ternary quadratic form, and let $q$ be an integer
such that $-q det(f)$ is not a square. Let $N(T,f,q)$ denote the number of
integral solutions of the equation $f(x)=q$ where $x$ lies in the ball of
radius $T$ centered at the origin. We are interested in the asymptotic behavior
of $N(T,f,q)$ as $T$ tends to infinity.
  We deduce from the results of our joint paper with Z. Rudnick that $N(T,f,q)$
grows like cE(T,f,q)$ as $T$ tends to infinity, where $E(T,f,q)$ is the
Hardy-Littlewood expectation (the product of local densities) and $0 \le c \le
2$. We give examples of $f$ and $q$ such that $c$ takes the values 0, 1, 2.
