. Palaeontological memoirs and notes of H. Falconer, with a biographical sketch of the author . PTION OF PLATE VIII. Mastodon Andium. Fig. 1. Portion of left side of lower jaw of a young Mastodon Andium,containing the second and third milk molars in situ, one-third ofthe natural size, and copied from a drawing by Mr. Ford inPlate XL., fig. 13 a, of the Fauna Antiqua Sivalensis. Thespecimen is in the British Museum, and was obtained fromBuenos Ayres. (See page 99.) Fig. 2. Left half of lower jaw of an adolescent Mastodon Andium, con-taining the first and second true molars, one-third of the nat
. Palaeontological memoirs and notes of H. Falconer, with a biographical sketch of the author . PTION OF PLATE VIII. Mastodon Andium. Fig. 1. Portion of left side of lower jaw of a young Mastodon Andium,containing the second and third milk molars in situ, one-third ofthe natural size, and copied from a drawing by Mr. Ford inPlate XL., fig. 13 a, of the Fauna Antiqua Sivalensis. Thespecimen is in the British Museum, and was obtained fromBuenos Ayres. (See page 99.) Fig. 2. Left half of lower jaw of an adolescent Mastodon Andium, con-taining the first and second true molars, one-third of the naturalsize, and copied from a drawing by Mr. Ford in Plate XL.,? fig. 15, of the F. A. S. The specimen belongs to the Canterbm-yMuseum, and was obtained from Chili. (See page 100.) Fig. 3. Perfect lower jaw of a nearly adult Mastodon Andium, con-taining the second and third true molars in situ, one-third ofthe natural size, and copied from a drawing by Mr. Ford inPlate XXXV. of the F. A. S. The specimen is in the BritishMuseum, and was obtained from Buenos Ayres. (See page 100.) ,te. G-KPari ad. JDinksL Htb. WWestin^. MsLStodon ELEPHANT AND MASTODOX. 101 in length, 285 inelies of width in front, and 3 inches posterior tooth, which is the last or third true molar, hasthe crown composed of four principal ridges, and a convexsubtriangular heel of several points. The three anteriorridges are partly worn, and finely exhibit the characteristiccomplex trefoil discs of wear; the two posterior are intact,and the sinuous hollows between them show the very con-siderable layer of cement, which, as previously noticed, ispresent in a greater quantity in this than in any other speciesof true mastodon. The dimensions of this tooth are about8 inches in length by 35 inches of width in front, whence itnarrows gradually towards the posterior end. Another de-tached specimen in this collection exhibits the same form,and is very nearly of the same size. These three specimens
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherlondon, bookyear186
