This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particula

Reprint of the original, first published in 1871.

Reprint of the original, first published in 1871.

Infectious diseases are the leading cause of death globally, particularly among children and young adults. The spread of new pathogens and the threat of antimic

Foreword by T W B Kibble, FRSIn the last five decades, the gauge approach to gravity has represented a research area of increasing importance for our understand