All out of print volumes of the Treatise on Invertebrate Paleontology in searchable PDF format on one CD-ROM.
Volumes included:
Part A, Introduction (1979)
Part D, Protista 3 (1954)
Part I, Mollusca 1 (1960)
Part R, Arthropoda 4, vol. 1 & 2 (1969)
Part S, Echinodermata 1, vol. 1 & 2 (1968)
Part T, Echinodermata 2, vol. 1-3 (1978)
Part W, (Revised and Enlarged) Miscellanea, Supplement 1 (1975)