Sing-sing Antelope, [310]
Siphneus, [479]
Sirenia, [333] f.
Sivatherium, [306]
Size, of Mammals, [2];
progressive secular increase in, [103];
of Whales, [342]
Skull, [25];
of Human embryo, [27];
of adult, [586];
Sing-sing Antelope, [310]
Siphneus, [479]
Sirenia, [333] f.
Sivatherium, [306]
Size, of Mammals, [2];
progressive secular increase in, [103];
of Whales, [342]
Skull, [25];
of Human embryo, [27];
of adult, [586];