age of selenium, about 1°8 per cent. HIPPOPOTAMUS DENTISTRY. It has been named guadaicazarsite, from the locality where it The hippopotamus now at the New York aquarium re- was found. It is said to be sufficiently abundant there to be cently underwent that most disagreeable experience to all… … bisulphate and fluoride of sodium, Professor Clarke finds that chloride of sodium may be substituted for the more expen- juveniles, the extraction of a tooth. “Baby,” as the un- third turn of the spiral marked on the dial where the needle sive fluoride with but slight inconvenience. The mixture…
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![An illustration from Banbury chap books and nursery toy book literature [of the XVIII and early XIX centuries] (1890)](https://img.insideoutlibrary.com/img/200/ia-banburychapbooks00pearrich-56-151.webp)
![An illustration from XIXe [i.e. Dix-neuvième] siècle (en France); classes - moeurs - usages - costumes - inventions. Ouvrage illustré d'un front. chromotypographique, de 16 planches coloriées aux patrons, de 36 entetes et lettres ornées et de 487 gravures (dont 24 tirées hors texte) d'après les principaux artistes du siècle (1893)](https://img.insideoutlibrary.com/img/200/ia-xixeiedixneuvi00granuoft-704-526.webp)
