COMPOSITION AND PROPERTIES OF LIME. 



119 



TABLE 40. 

 ANALYSES OF MAGNESIAN LIMES (U. S.). 



1. Canaan Lime Co., Canaan, Conn. J. S. Adam, analyst. 20th Ann. Rep. U. S. Geol. Sur. 



pt. 6, p. 370. 



2. Ladd Lime Works, Bartow, Ga. N. P. Pratt, analyst. 20th Ann. Rep. U. S. Geol. Sur. r 



pt. 6, p. 375. 



3. Kelly Island Lime Co., Sandusky, Ohio. J. W. Skinner, analyst. Private communica- 



tion. 



4. Marblehead Lime Co., Sandusky, Ohio. J. W. Skinner, analyst. Private communication. 



5. L. McCollum & Co., Tiffin, Ohio. O. Wulte, analyst. 20th Ann. Rep. U. S. Geol. Sur. r 



pt. 6, p. 433. 



6. McCoy Lime Co., Bridgeport, Pa. C. I. Reader, analyst. 20th Ann. Rep. U. S. Geol. Sur., 



pt. 6, p. 440. 



7. Sheboygan Lime Works, Sheboygan, Wis. G. Bode, analyst. 20th Ann. Rep. U. S. Geol. 



Sur.. pt. 6, p. 464. 



8. Western Lime Co., Huntingdon, Ind. T. W. Smith, analyst. 28th Ann. Rep. Indiana Dept. 



Geology, p. 237. 



9. Consolidated Lime Co., Huntingdon, Ind. R. E. Lyons, analyst. 28th Ann. Rep. Indiana 



Dept. Geology, p. 239. 



10. Petoskey Lime Co., Bay Shore, Mich. E. J. Schneider, analyst. 28th Ann. Rep. Indiana 



Dept. Geology, p. 413. 



11. Williams Lime Works, Rossie, N. Y. Bull. 44, N. Y. State Museum, p. 815. 



12. West Coxsackie, Greene Co., N. Y. 18th Ann. Rep. U. S. Geol. Sur., pt. 5, p. 1063. 



13. Coble Lime Co., Delphi, Ind. T. W. Smith, analyst. 28th Ann. Rep. Indiana Dept. Geology, 



p. 233. 



mortar for structural work. During the past few years, however, it 

 has assumed a far greater importance as being an essential part of the 

 manufacture of " hydrated lime " and " lime-sand bricks ". The theo- 

 retical aspects of the slaking of lime will be discussed in the section 

 below, while the discussion of the actual methods of slaking will be 

 found on pp. 120, 121 and in the two succeeding chapters (IX and X), 

 which deal with the manufacture and properties of hydrated lime and 

 of lime-sand brick respectively. 



If water be poured upon a lump of pure quicklime, lime hydrate 

 will be formed, while considerable heat will be evolved, the lime will 

 expand notably in bulk, and the lump will fall into powder. The chem- 

 ical combination that takes place during this operation is represented 

 in a formula by 



CaO + H 2 O - Ca0 2 H 2 . 



(Lime) + (Water) = (Lime hydrate) 



