The Science Ephemera Grab Bag contains at least 50 pieces of vintage and antique black & white and color ephemera, including etchings, engravings, illustrations, charts and diagrams, and/or photographs. (Some pieces may have more than one image.) The images come from many scientific areas, such as biology, chemistry, genetics, geology, nature study, and physics. The ephemera has been taken from general and specific science books; textbooks; children's books; encyclopedias and dictionaries; and scientific magazines. Text may be in several languages. Source and date of each piece are enclosed. Each Science Ephemera Grab Bag is unique.