Memoir Henry Draper 1837 - 1882

Cultural Considerations in the Experience of Aging: Two African Cultures

Memoir of James Ormiston M'William

James Ormiston M'William was born at Dalkeith on Sept. 5, 1807. He received his medical education under Dr. Andrew Walter and Mr. Charles Graham, of that town, and subsequently became a licentiate of the Royal College of Surgeons, Edinburgh, and an M.D. of the University of that city. He entered the Royal Navy as assistant-surgeon in 1829, and serving on board H.M.S. "North Star" and " Canopus"...

Alfred Henry Sturtevant

Any opinions expressed in this memoir are those of the author(s) and do not necessarily reflect the views of the National Academy of Sciences.

A Sociobiological Perspective on the Development of Human Reproductive Strategies

Karyotypes of some medium-sized Dytiscidae (Agabinae and Colymbetinae) (Coleoptera)

An account is given of the karyotypes of 29 species of medium sized Dytiscidae (Coleoptera). Of the 20 species of Agabus Leach, 1817, 18 have karyotypes comprising 21 pairs of autosomes and sex chromosomes which are either X0(♂) or XX (♀). These species are Agabus serricornis (Paykull, 1799), Agabus labiatus (Brahm, 1791), Agabus congener (Thunberg, 1794), Agabus lapponicus (Thomson, 1867), Aga...