CONTENTS vii 



CHAPTER XIII. 

 DRIVEN AND JET WELLS. 



Extensive use of driven wells. Advantages and disadvantages of driven wells. 

 Location of driven wells. Sinking the driven well. Depths of driven wells. 

 Cleaning and care of driven wells. Advantages and disadvantages of jet wells. 



Location of jet wells. Sinking jet wells. Depth, size and care of jet wells. 



CHAPTER XIV 

 DEEP WELLS. 



Types of deep wells. Advantages and disadvantages of different types of deep wells. 



Location of deep wells. Relation of depth and supply. Relation of depth 

 and head. Relation of depth and quality. Summary statement. Protection 

 of deep wells. 



CHAPTER XV. 

 SPECIAL PROBLEMS. 



Shooting. Use of steam jet. Screening the well. Setting the casing. " Casing 

 off." Packing. Plugging. Corrosion of casings. 



CHAPTER XVI. 

 COST OF DRILLING AND CASING. 



Variability of cost of wells. Cost table for wells. Cost of casing. 



CHAPTER XVII. 

 METHODS OF RAISING WATER. 



Common methods. Buckets. Chain pumps. Suction pumps. Deep well 

 pumps. Force pumps. Rotary pumps. Centrifugal pumps. Air lift. 

 Hydraulic rams. Turbines. Power for pumping. 



CHAPTER XVIII. 

 PECULIARITIES OF BEHAVIOR OF WELLS. 



Fluctuations of head. Variations in yield. Roiliness of well waters. Blowing 

 wells. Breathing wells. Sucking wells. Freezing of wells. Cause of phe- 

 nomena. Remedies for freezing wells. 



CHAPTER XIX. 

 CISTERNS AND HOUSE TANKS. 



When cisterns are desirable. Advantages of cisterns. Disadvantages of cisterns. 

 Size of cistern required. Location of cistern. Construction and equipment. 

 Cistern filters. Combination wells and cisterns. House tanks. 



