The original edition was published in twelve text volumes between 1924 and 1939. Publication of the new edition began in 1970.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.

The volume has been completely rewritten by specialists from Great Britain, France, Italy, Germany and Canada, and takes full account of the vast amount of new material that has become available in the last fifty years.