“…We also know of no general techniques for constructing hessian curves with a prescribed configuration. One of us (Ortiz-Rodríguez) investigated this question [4,5] and constructed polynomials f ∈ R[x, y] of degree n whose hessians had n−1 2 ovals in R 2 . When n is 4, 5, and 6, these numbers are 3, 6, and 10, respectively.…”