Concrete silos; their advantages, different types, how to build them

author has attempted to bring together everything of value pertaining to the latest concrete silo construction. His investigation of the subject has led him to believe that there is a demand for such a book. While there is a large mass of literature on concrete silos extant, practically every piece of such printed matter is prepared with special emphasis on some particular type of construction, or on some particular phase of the subject.

This volume is an attempt to bring together all the best things in this scattered literature, making it, so far as possible, a complete compendium of concrete silo construction. For this purpose the author has drawn freely upon bulletins of the various cement companies and of the Association of American Portland Cement Manufacturers, as well as upon publications of the State Agricultural Experimental Stations, and the literature of the companies promoting various patented systems.

The demand for the book, even before it has appeared from the press, has been so gratifying that it is expected another edition will be necessary at an early date. The author will therefore be pleased to have readers advise him of any errors, inaccuracies, or omissions which they find.

E. S. HANSON. Chicago, Oct. 15, 1915.