This publication by Harry M. Lamon and Rob R. Slocum, both Poultrymen at the Bureau of Animal Industry at the United States Department of Agriculture, was originally published in 1922. It contains numerous photographs of various breeds of ducks and geese and is intended to give an insight into the workings of the poultry industry. Included in this work is also a brand new introduction on the history and methods of poultry farming. The following passage is an extract from the book's preface: 'Of all lines of poultry keeping, duck raising is unique in that it lends itself to the greatest degree of specialization and intensification along lines which are purely commercial. On a comparatively small area thousands of ducklings can be reared and marketed yearly. The call for information concerning the methods used by these commercial duck raisers has been considerable, and since such information is not available in complete concise form the present book has been prepared partly to furnish just this information.'
"Tuberculosis occurs among hogs in the United States to a serious extent and appears to be increasing. Nine per cent of all hogs slaughtered under the Government meat inspection during the fiscal year 1916 were found affected with this disease in some degree. Tuberculous cattle are the main source of tuberculosis in hogs. The disease is most commonly conveyed by feeding hogs on unpasteurized skimmed milk and by allowing them to follow tuberculous cattle in the feed lot and feed upon the undigested grain in the droppings. It is very significant that tuberculosis is most common among hogs in sections where the disease is also most prevalent among cattle and where feeding practices above mentioned are commonly followed. Hogs also contract tuberculosis from feeding on tuberculous carcasses of various animals, including fowls, and on uncooked garbage and slaughterhouse offal. Prevention lies in the pasteurization of milk fed hogs, especially that from creameries, and in allowing hogs to feed behind adult cattle only when cattle have passed the tuberculin test; also in thoroughly cooking all garbage, offal, or carcasses before they are fed to hogs. Young steers or young beef animals as a rule do not spread tuberculoses among hogs. Therefore no change need be made in the very profitable practice of allowing hogs to follow feeders and stockers unless these cattle are not healthy. When tuberculosis already exists in a drove of hogs all the affected animals, whether hogs or cattle, should be removed from the premises. The hogs should be sent to market for slaughter at an abattoir under Federal inspection. The tuberculin test should be applied to all cattle on the place, and those reacting should be properly disposed of. The pens and stable should be thoroughly cleaned and disinfected before restocking. Hog raisers should be well posted as to the nature and prevalence of hog tuberculosis and how to prevent and get rid of it so that financial losses may be avoided. This bulletin contains such information." -- p. 2.