Here he sometimes attains, even in details, to divinations of the truth afterwards confirmed by new documents and later research.
Araucaria Rulei, which is a tree of New Caledonia, attains a height of 50 or 60 ft.
Araucaria Cookii, also a native of New Caledonia, attains a height of 150 ft.
The human flea is considerably exceeded in size by certain other species found upon much smaller hosts; thus the European Hystrichopsylla talpae, a parasite of the mole, shrew and other small mammals, attains a length of 5z millimetres; another large species infests the Indian porcupine.