From Volume Two, page 69, _The Swallow and the Stork Came_: After a picture has been examined, as has been explained, it is sometimes a good thing to study the way in which the artist has produced his effects. The effects in this picture are remarkably fine and Mr. Rudeen has accomplished his purposes very skilfully. What effect is given by the mass of white in the center of the picture? Does it help to give emphasis to the principal figures? Does the artist use his colors in proper tones and shadings? Does he succeed in making the birds seem really to fly? Do you see the face in the fir tree? How are the eyes indicated? Are the lines and patches that make the face any different from those that indicate other leaves on the tree? Why then does it look like a face? Does the face have an expression of surprise? If the branches and leaves on the left side of the tree were curved downward instead of upward, would the expression be changed? Is there any indication of feathers on the swallows? How are feathers indicated on the stork? The artist drew the original of this picture with pen and black ink. The engraver made one plate for this drawing in black, then another plate for those portions of the picture which have any shade or tone of orange, and still another for the blue tones. The green is produced by printing from the orange and the blue inks over the same surface. Facing page 82, Volume Two is the portrait of Hans Christian Andersen. This was taken from a photograph, and under a microscope it can be seen that the ink is put on in fine dots. The border was drawn with pen and ink. The original photograph of Andersen was photographed through a screen and reduced to the size you see it. The pictures in the book are printed from the metal plates which put the ink on the paper in little dots. These prints are called _halftones_: the pen and ink drawings in the texts are called _zinc etchings_. The original of the colored frontispiece of the same volume was a water-color painting by Mr. Henderson. This was reduced in size by photography and four plates were made, one showing all the black, and another all the red, a third all the blue and a fourth all the yellow in the original. Then the paper was run through the press four times, each time with the color of ink for which each plate was etched. By printing one color over another this way, the different shades were made. No better way is known for reproducing colored pictures. The border was drawn with pen and ink. The title page was drawn with pen and ink and a zinc etching made by photographic process, from which an electrotype plate was made. The end sheets are decorated by a zinc etching reduced from a large drawing made by Mr. Mitchell. The title and ornaments on the back of the books are made from strong brass dies that were engraved from drawings made by special artists. Gold leaf is laid over the section to be lettered and