x CONTENTS. 
Sudden productions of Crystals by heat 
Crystallization the effect of an impulsive force 
The impulsive force causing app as inferred to be 
Electricity . 
Explanation of the manner in aseh rebels dane are 
produced 
Explanation of the mode a3 aeatecion of ot ee ties in 
Caleuli 1 
Complete molecular disiataation 
Experiment showing complete molecular ieaiegiton pede 
by keeping Calculi in a denser solution 
Experiments showing complete molecular cameo in Gale 
composed partly of vegetable matter 
Experiment showing complete molecular disintegration by de- 
positing paonae of lime upon Calculi perfectly performed 
Time an element in the operation both of coalescence and 
disintegration 
The form of ultimate Molecules or Atoms 
PuystoLogicaL Part.—Introductory observations 
Formation of Calculi found in the Urine of the Horse 
These Calculi considered as organic formations 
Views of the Cell-germ theory 
Mode of formation of Calculi occurring in the vine of the oiee 
Vitality not connected with the formation of these Calculi . 
** Animal basis”’ exists in Artificial Caleuli—Experiment showing 
the fact 
Structure of the Shell- detect in Crabs 
Vertical section of the Crab-shell—Precautions in pernibiri stich 
Craw-fish well suited for the examination of Shell-tissue 
The radiating lines explained, not tubules 
The structure of Crab-shell compared with Ivory 
The Dentinal Canals not regular Tubules 
Regular tubes in Shells not analogous with so-called Toetitarnl 
Tubes 
The part of Crab-shell aed Mpodernats rel esa for showing 
molecular coalescence : 
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