Also the posterior enamel plates of m1 and m2 are remarkably long, extending around the ends of the tooth.
m1, however, is approximately the same size in each subspecies.
Judging from specimens examined by me, such is the case, and the difference is even more pronounced in m1.
Exception is to be made for the inner lobe of m1 in males where the size is the same.
Of these parts, right m2, left coronoid process, right P4 and m1 and adjacent part of maxilla are lost.
Three specimens are assigned to this species on the basis of the breadth of m1.
The buttons m and m1 could be brought to any degree of incandescence by passing the discharges of Leyden jars around the coil C.
The teeth are not typical of modern Zapus in that m1 and m2 are shorter crowned and m1 has a longer anterior lobe.
The molars erupt in sequence from front to back, and wear shows first on m1 and last on M3.
In several specimens, however, the re-entrant fold is absent from the lingual surface of m1.
13th letter, from Greek mu, from Semitic mem. The Roman symbol for 1,000; sometimes used in this sense in English 15c.-16c.; but in late 20c. newspaper headlines it stands for million. As a thickness of type, from 1680s.
Abbreviation of mass, meter