136 



TABLE OF CONTENTS. 



Page 



Louis Pasteur 2-3 



Introduction 5-7 



CHAPTER I. MILK AND ITS PRESERVATION. 



Chemical preservatives 8-9 



Preserving by cooling 9 



The Casse system of freezing 9-11 



Preserving in vacuum 11-12 



Preserving with pressure 12-13 



Preserving by electricity 13 



Preserving by heat 13 



Preserving by condensing 13-15 



Condensing without vacuum 15-16 



Preserving in powder form 16-17 



Preserving by pasteurization 17-22 



Intermittent pasteurization 22-23 



Sterilizing 23-26 



Preserving by carbonic acid gas 26 



CHAPTER II. THE PASTEURIZING HEATER. 



Continuous heaters 27-41 



Regulators for heaters 41-43 



Banishment government experiments with latest heaters . 43-47 



Surface heaters 47-53 



A new departure in heaters 53-56 



Tank Heaters 56-61 



Storage tanks 61-63 



CHAPTER III. THE PASTEURIZING COOLER. 



Coolers with exposed surface 63-65 



Coolers with protected surface 65-67 



Centrifugal coolers 67-68 



Ice coolers 68-70 



