HUMANE TREATMENT OF ANIMALS USED IN RESEARCH 
PREFACE 
The Research Defence Society published the first edition 
of Notes on the Law Relating to Experiments on Animals 
in Great Britain in August, 1950. These notes were intended 
to simplify the task of obtaining licences and certificates for 
animal experiments, and to obviate delays which are likely to 
occur when incorrect applications are made to the Home Office. 
They received a warm welcome from members of the Society 
and from all whose work had to do with experimental animals. 
The second edition has been largely re-written and, where 
necessary, brought up to date. Three main changes in 
Home Office practice have taken place during the last eight 
years. They have to do, respectively, with the interpretation 
of Section 4 of the Act (curare) ; with the taking of cinemato- 
graphic records of experiments ; and with the licensing of 
technicians. The present practice has been incorporated in 
the second edition of these notes. 
The Research Defence Society is pleased at all times to 
advise and, if possible, give assistance to licence-holders 
applying for certificates, and particularly if the licensee is 
informed by the Home Office that his certificates are to be 
submitted to the Advisory Committee. 
W. LANE-PETTER, 
Honorary Secretary. 
Research Defence Society, 
1 1 Chandos Street, 
London, W. 1. 
