In the mid-1940s, Captain Will Judy published a Handy Dog Booklet Series which included a dozen different titles. Each was illustrated and I’ve chosen some images to share from several of the booklets.
Laws about Dogs, 1943:

Feeding the Dog, 1945:



Whelping of Puppies, 1945:




Stud Dog’s Care and Management, 1945:



How to Sell Dogs, 1944:

You certainly have a wonderful collection of vintage animal books. About the image for “Laws about Animals” above — it is very moving & leads one to make up a story about the case. The man has clearly gotten in legal trouble connected with his dog — or is the dog simply comforting him? It would be interesting to find out what your other readers think is the story behind the image I think maybe the dog has been deemed dangerous & condemned & the man has been pleading for him. Or maybe he isn’t allowed to keep him where he is living. It certainly stimulates the imagination.
I have very few actual vintage dog books but I spend a lot of time perusing the internet archive!
I wonder what would make the judge gasp?
Maybe hearing the defendant’s side of the story. It’s up to us to fill in the blanks!