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    general reader . Bergelius gives it thus— " Phosphate of lime 85 . 3 ; fluate of lime 3 . 2 ; carbonate of lime 8 . 0 ; phosphate of magnesia 1 . 5 ; soda , and muriate of soda 1 . 0 ; animal matter and water 1 . 0 : total 100 . " The analysis of Morichini

    is as follows : — " Animal matter 0 . 30 ; calcareous earth 0 . 33 ; talc ( talkerde ) 0 . 09 ; clayey earth 0 . 05 ; fluoric and phosphoric acid 0 . 22 ; carbonic acid 0 . 01 : total 1 . 00 . " That the decay of teeth originates in constitutional , as well as external causes , we feel convinced , and agree also with the author that

    the latter are mostly such as corrode , chip , or otherwise injure the enamel . This often occurs from the use of nostrums , and acid tooth-powders ( which act fatally upon the phosphate and carbonate of lime ); by the accident of a blow , a fall , or during mastication ; but more frequently from thoughtless tricks , such as only become squirrels , monkeys , wild-boars , and other savages .

    " Another frequent source of injury to the enamel , is the foolish and inelegant practice of cracking nuts , biting thread , and employing teeth as a vice to unscrew small ivory boxes or needle-cases , to turn the stoppers of smelling-bottles , &c . Indeed , some persons are so utterly regardless of the value and proper uses of their teeth , that

    they seem to look upon the mouth as a portable tool-chest , where they may find a pair of scissors , or pincers , a knife , a corkscrew , or any instrument almost that they may chance to need . Such practices cannot be sufficiently censured , and they will no doubt be sincerely regretted , when the Joss of the teeth is felt .

    " Let the reader imagine a tooth completely hollowed out and rendered a mereshell by the action of caries , and he will perceive at oncehow easily such a tooth , though capable of retaining its place a long time , if it be so situated as to escape hard pressure , will be crushed to pieces by the force required to break a hard nutshell . Thus , this common practice alone may , by repetition , effect the total destruction of several teeth . "—pp . 73—74 .

    The chapter on " diseases attending dentition , " or what is called " cutting the teeth , " is too concisely treated . Though we are aware that the subject rather belongs to the medical practitioner , yet we certainl y wished and anticipated more information from one who has made dental surgery his exclusive study . When we find the author strongly reprobating " the custom of giving children calomel on bread and butter ,

    because it is tasteless / and explaining that this powerful remedy should never be used merely as an aperient , we regret that he did not give us many more such cautions . The way in which calomel is frequently given , both by regular practitioners and nurses , without considering the peculiar constitution of the patient—whether a child or an adult—is as shameful as it it is generally mischievous . While some constitutions can bear two or three grains with a simple effect ,

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    282 Dental forgery .

• Citation
  • Monthly Repository (1806-1838) and Unitarian Chronicle (1832-1833), May 2, 1836, page 282, in the Nineteenth-Century Serials Edition (2008; 2018) ncse-os.kdl.kcl.ac.uk/periodicals/mruc/issues/vm2-ncseproduct2657/page/18/