N.
Nares, Capt. Sir G., on snow and ice in high latitudes, [135]
on abrupt elevation of Bermuda, [264]
Nearctic Region, definition of, [48]
mammalia of, [48]
birds of, [49]
reptiles of, [50]
Nectarinea osea, restricted range of, [16]
Neilgherries, Australian plants naturalized in, [528]
Neotropical Region, definition of, [51]