These illustrations are from Horace Scudder's Book of Fables and Folk Stories (1919), which you can find online at the Internet Archive. Although the artist's name is not given, the preface to this edition of the book notes that it contains new illustrations, replacing the illustrations in older editions of the book. Click here for more illustration slideshows.
Here is the Scudder slideshow (apologies to iPad users - the Flickr.com slideshows are Flash-based, but you can view the Flickr album directly if the slideshow does not work).
