Comparative table of area and population in the United Kingdom and its colonies and former colonies.

Table of information listing the area and population statistics in the British Territory of India in 1851, 1861 and 1871.

Table of information on the area and populations of the United Kingdom and British possessions between 1896 and 1902.

Text from a newspaper article, 'Canada. The Census Results. Population of 7, 170,000, Ottowa, October 18' which discusses the increase of emigration and births over a period of ten years in the early 20th century.

Description of Canadian immigration figures issued by the Department of Immigration and from where they arrived in the early 20th century.

Table of data from the dominion of Canada census for the years 1871, 1881, 1891, 1901 and 1911 showing the population growth in the provinces and cities.

Table showing the number of people (male and female) engaged in the agricultural industry in England, Wales and Scotland between 1871 and 1901.

Contains a variety of copies of articles mainly concerning birth control and population issues, including: 'The Future of the Family' by Anne McLaren, papers from the Delos Nine Symposium (1971), Athens Center of Ekistics, and various copies of a typescript titled 'Health', possibly written by Waddington.

Contains correspondence with Jean Piaget and others relating to Waddington's research into the Limnea genus of water snail. Also includes some photocopies of related articles and photographic images and illustrations.

Contains circulars from Negative Population Growth, Inc, New York.