ACKNOW LEDGMENTS 



It is my pleasure to express my high appreciation and gratitude 

 to Messrs. George Spitzer, Associate in Dairy Chemistry, and W. F. 

 Epple, Assistant Dairy Chemist, Purdue University Agricultural Ex- 

 periment Station, for much valuable assistance in the preparation of 

 the chapter on "Chemical Analysis" ; to Professors E. S. Ferry, 

 Chief of the Department of Physics, G. A. Young, Chief of the De- 

 partment of Mechanical Engineering, and Mr. Arthur Dufty, Super- 

 intendent of Buildings, Purdue University, for timely suggestions on 

 the scientific relation to the subject of physics and mechanics; to 

 Messrs. Ed. B. Gage, Superintendent of the Missouri Condensed 

 Milk Co., Kohoka, Mo., Frank A. Page, Manager of Hires Con- 

 densed Milk Co., Lake Odessa, Mich., and W. T. Wilson, President 

 o,f the Indiana Condensed Milk Co., Sheridan, Ind., for valuable 

 data connected with practical manufacture ; to Mr. F. F. Taylor, 

 President of Borden's Condensed Milk Co., for biographic data 

 relating to Gail Borden and for cuts for illustrations of Gail Borden 

 and of the first milk condensing factory in the United States; to 

 Miss Nellie Tracy, Secretary of the Purdue Agricultural Experi- 

 ment Station, for most valuable services in proof-reading; and to 

 the following manufacturers of machinery and supplies related to 

 the manufacture of condensed milk and milk powder, for valuable 

 cuts for illustration in the text and for their generous contributions 

 of advertisements as shown at the conclusion of this volume, whose 

 kindly and active cooperation made possible the issuance of this 

 publication: American Can Co., A. H. Barber Creamery Supply 

 Co., Bausch and Lomb Optical Co., Bessire and Co., Burt Machine 

 Co., Dairy Machinery and Construction Co.,, DeLaval Separator Co., 

 F. G. Dickerson, Eimer and Amend, J. B. Ford and Co., Emil 

 Greiner Co., William Grelck, Arthur Harris and Co., F. K. Higbie 

 Co., Howe Scale Co., Ernst Leitz, Louis F. Nans, E. H. Sargent 

 and Co., Schaefer Manufacturing Co., Spencer Lens Co., Sprague 

 Canning Machinery Co., Stevenson Company, Herman Stier Manu- 

 facturing and Engineering Co., Sturges and Burn Manufacturing 

 Co., C. J. Tagliabue Manufacturing Co., Taylor Instrument Co., 

 The Engineering Co., The Preservaline Manufacturing Co., The 

 Torsion Balance Co., Union Fibre Co., and Wagner Glass Works. 



