Vintage Dinosaur Art: Questions Children Ask

I have an ever-expanding collection of vintage dinosaur art which I'm in the midst of digitizing. Most of it is in the form of obsolete children's books. I'm as big a sucker for old design and illustration as I am for dinosaurs. Mix the two, and I'm happy as a pillbug.

Here's a good one from a 1956 book called Questions Children Ask, published by the Standard Education Society (here's a Flickr set featuring other pages from the same book). It's credited to Henry Harringer (1892-1980), who seems to have been a Chicago-based illustrator who toiled away in obscurity. I can find little information about him, but everything he's connected to is out of Chicago. His only claim to modest fame appears to be a theater, proposed at the Century of Progress Exhibition, which would have brought Ziegfield Follies style shows to the Windy City.

I love this caption: "The Diplodocus was nearly 90 feet long. It had a very small brain and was clumsy and stupid." These old science books always made a point of impugning the intelligence of one dinosaur or another. I can't hold that against old Mr. Harringer, of course.