The data contained in the following pages were gathered in the months of September of 1905 and 1906. The writer visited all of the thirty-one farms mentioned in this paper and took notes on the number and arrangement of men and teams, the machinery used, and the length of time taken, a nd he also made measurements of the silos, etc. Information in regard to the quantities of twine and fuel used and the number of acres cut was given by each individual farmer. It was thought advisable to confine this inquiry to localities in which the silo has been in use for several years. The places chosen were in Jefferson a d Fond du Lac Counties, Wisconsin, and in Branch and Lewanee Counties, Michigan.

"In localities where a one-crop system has prevailed for a number of years farms which deviate from this system are of a special interest, because they show what types of farming are possible in the section in which they are located. In the cotton-growing States such farms are of unusual interest for the reason that so few of them exist. Much of the hay consumed on Southern farms and plantations is shipped from the North. As a result, hay is high priced in the South. There is room for a considerable number of hay farms in that section. That such farms can be made to pay handsomely is demonstrated by the experience of the farmer whose work is described in these pages. Not every hay grower can follow the methods here described. It is not necessary, however, that a farmer should feed steers for their manure, as is done on this farm, in order to be able to grow hay. While nothing else is quite equal to manure, the land can be kept in good heart by plowing under an occasional green crop and then using lime and commercial fertilizers. A brief discussion of hay growing under more usual conditions on souther farms will be found at the end of this bulletin."--Page 7.

The Poisonous plants photograph collection contains black and white lantern slides of different species of livestock suffering from plant poisons. Most slides feature livestock that have been pooisoned and /or include scientific name of poisonous plant species, animal type, animal number, and date and time of photograph. These captions allow the viewer to follow the course of a particular animal's reaction to a plant toxin. A few slide images show landscapes. A few imoges show livestock, but do not specify a plant poisoning. Some images include charts, tables and figures related to poisonous plant research.

The Poisonous Plants Photograph Collection contains black and white lantern slides of different species of livestock suffering from plant poisons. Most slides feature livestock that have been poisoned and/or include scientific name of poisonous plant species, animal type, animal number, and date and time of photograph. These captions allow the viewer to follow the course of a particular animal's reaction to a plant toxin. A few slide images show landscapes. A few images show livestock, but do not specify a plant poisoning. Some images include charts, tables and figures related to poisonous plant research.