So robin, you not only agree that Haeckel's claims and drawings were used and widely relied on (the topic of the OP) until the late 90s, but that some evos still do?
Mayr's book was published in 2001. My point is that he doesn't think that Haeckel's drawings (at least the ones he reproduced in his book) are useless. Otherwise he wouldn't have reproduced them.
So maybe Haeckel was not all wrong after all--despite his frauds.