. The Dental cosmos. currence. It would require, however,too much time to discuss at length thesignificance of this phenomenon. I shalltherefore merely point out that the ab-sence of a paramolar tubercle in thefirst molar is easily explained in view ofthe fact that our first molar—as I havedemonstrated in my Theory of theTerminal Reduction of Tooth Rows—isnone other than the third deciduousmolar of our primeval types. The rela-tionship between this fact and the ab-sence of a tubercle in the first molar,which De Terra has also pointed out, Ishall not discuss at this time. Another peculiarity wh
. The Dental cosmos. currence. It would require, however,too much time to discuss at length thesignificance of this phenomenon. I shalltherefore merely point out that the ab-sence of a paramolar tubercle in thefirst molar is easily explained in view ofthe fact that our first molar—as I havedemonstrated in my Theory of theTerminal Reduction of Tooth Rows—isnone other than the third deciduousmolar of our primeval types. The rela-tionship between this fact and the ab-sence of a tubercle in the first molar,which De Terra has also pointed out, Ishall not discuss at this time. Another peculiarity which deservesmention is that I found the paramolartubercle more frequently in the secondthan in the third molar. Putting to-gether all the cases that I have been IN THE MOLAR REGION IN MAN. 161 able to collect, the ratio is about two toone. From this it appears that thisdifference cannot be merely the conse-quence of the process of reduction, butthat there must be other causes back of Fig. it. In this connection I would recall thefact that an independent paramolar, aso-called anterior paramolar, occurs ex-tremely rarely laterally between the firstand second molars. If one coincideswith my opinion that the paramolar Fig. 11.
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