5 23 Casts of polythalamia 1049-1069 24 Oregon, California, Puget Sound, extc. 811-858 ----------------------------------- * Numbers and titles are taken directly from the original boxes. ** This range of serial numbers delimits all slide numbers contained in each box in 1976, when restoration of the collection was begun; it does not imply that all numbers within the range were represented by slides found at this time. *** In 1976, Boxes #8 and #17 were on loan to the Academy of Natural Sciences of Philadelphia and consequently not found initially with the rest of the collection. They have subsequently been returned to the collection.