Now, in one out of four of the Eskimo crania examined by Dr. Morton, the parietal diameter so nearly approaches the occipito-frontal as for the skull in question to be as much as 5·4 inches in width, and as little as 5·7 in depth; a measurement which makes the Eskimo brain almost as broad as it is long. _Valeat quantum._ It is an extreme specimen. The remainder are as 5·5 to 7·3; as 5·1 to 7·5; and as 5 to 6·7, proportions by no means exclusively Eskimo, and proportions which occur in very many of the undeniably American stocks. Likeness there is; and variety there is;--likeness in physical feature, likeness in language, and likeness in the general moral and intellectual characteristics. And then there is variety--variety in all the details of their arts; variety in their bows, their canoes, their dwellings, their fashions in the way of incisions and tattooings, and their fashions in the dressing of their hair. This is as much as can be said about the Eskimo at present. It is, however, preparatory to the general statement that _all the remaining_ Indians of British North America recede from the Sioux and Iroquois type, and approach that of the family in question. Such, indeed, has been the case, though (perhaps) in a less degree, with one of the classes already considered--the Athabaskan. _The Kolúch._--The extreme west of the British possessions beyond the Rocky Mountains, _north_ of latitude 55° is but imperfectly known. Indeed, for scientific, and, perhaps, for political purposes as well, the country is unfortunately divided. The Russians have the long but narrow strip of coast; and, consequently, limit their investigations to its bays and archipelagoes. The British, on the contrary, though they possess the interior, have no great interest in the parts about the Russian boundary. In the way of trade, they are not sufficiently on the sea for the sea-otter, nor near enough the mountains for other fur-bearing animals. Now, the mouth of the Stikin River is Russian, the head-waters British. Beyond these, we have the water-system of the McKenzie--for that river, although falling into the Arctic Sea, has a western fork, which breaks through the barrier of the Rocky Mountains, and changes in direction from west and south-west to north. Lake Simpson, Lake Dease, and the River Turnagain belong to this branch; the tract in which they lie being a range of highlands, if not of mountains. This is the country of the Nehannis; conterminous on the south with that of the Takulli, and on the north-east with that of the Dahodinni. How far, however, it extends towards the Russian boundary and in the north-west direction I cannot say.