Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 655
longations are variously arranged in different examples of thegenus : thus in some, as N. distans, they keep their own separatecourse, all tending radially towards the centre; in others, as 582 MICROSCOPIC FOEMS OF ANIMAL LIFE. N. laevigata, their partitions inosculate with, each other, so as… … Vertical Section of portion of NummuUna Icevigata:—a,margin of external whorl; b, one of the outer row of chambers;c, c, whorl invested by a; fZ, one of the chambers of the fourthwhorl from the margin; e, e, margiual portions of the enclosedwhorls : /, investing portions of outer whorl; g, g,…
Microscopy · Biology
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