Die Physiologie des Kreislaufes / von dr. Robert Tigerstedt.

Bd. 2

Die Physiologie des Kreislaufes / von dr. Robert Tigerstedt.

Bd. 1

The cyclopædia of anatomy and physiology. Ed. by Robert B. Todd ...

1

A contribution to American thalassography : Three cruises of the United States Coast and geodetic survey steamer "Blake", in the gulf of Mexico, in the Caribbean sea, and along the Atlantic coast of the United States, from 1877 to 1880 / by Alexander Agassiz ...

2

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.

v.16=no.181-192 (1880)

The fishes of Illinois / Stephen Alfred Forbes and Robert Earl Richardson.

2nd ed.

A taxonomic revision of the genus Cnemidaria (Cyatheaceae) / Robert G. Stolze.

v. 37(1974)

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

v.39(1976)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of John T. Mickel, Robbin C. Moran.

n.s. no.27(1991)

Ferns and fern allies of Guatemala. Robert G. Stolze ; the genus Elaphoglossum by: John T. Mickel ; the genus Thelypteris by: Alan R. Smith.

n.s. no.6(1981)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of Blanca León.

n.s. no.32(1993)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze.

n.s. no.22(1989)