Studies in neotropical mammalogy : essays in honor of Philip Hershkovitz / edited by Bruce D. Patterson, Robert M. Timm.

n.s. no.39(1987)

Letter from Robert Winthrop to Loammi Baldwin, 1836 September 2

One-page handwritten letter from Robert Charles Winthrop regarding Baldwin's appointment as vice-president of the second Centennial Festival at Harvard.

Ferns and fern allies of Guatemala. Robert G. Stolze.

n.s. no.12(1983)

Variation in Bornean frogs of the Amolops jerboa species group, with description of two new species / Robert F. Inger, Paul A. Gritis.

n.s. no.19(1983)