The British Tunicata; an unfinished monograph, by the late Joshua Alder and the late Albany Hancock. Edited by John Hopkinson, with a history of the work by the Rev. A. M. Norman.

1

The British Tunicata; an unfinished monograph, by the late Joshua Alder and the late Albany Hancock. Edited by John Hopkinson, with a history of the work by the Rev. A. M. Norman.

2

The British Tunicata; an unfinished monograph, by the late Joshua Alder and the late Albany Hancock. Edited by John Hopkinson, with a history of the work by the Rev. A. M. Norman.

3

Arctic searching expedition: a journal of a boat-voyage through Rupert's Land and the Arctic Sea, in search of the discovery ships under command of Sir John Franklin. With an appendix on the physical geography of North America. By Sir John Richardson ...

v. 1

Studies on the embryology of the Sipunculidae. I. The embryonal envelope and its homologue. ... By John H. Gerould.

no. 1

American natural history. Volume 3. Part 1.--Mastology. By John D. Godman.

3

Regent advances in the study of the mineral nutrition of cotton in Brazil

Due to the great economic importance of the cotton crop to Brazil, a systematic series of research work has been carried out in recent years dealing with its mineral nutrition an fertilization. A summary of recent finding is given in the following sections.