I have to thank you for your kind letter of the 24th of December, 1875; it affords me great satisfaction to hear that my remarks about the New Hebrides have interested you.

The following brief notes on rare, little known, or occasionally new fossils, in some cases anticipating more detailed descriptions, may be of interest to the readers of the GeologicalMagazine.

In my former note I adduced the reasons which make me confident that the conglomerates of the south of the Isle of Man, which have been hitherto classed as Devonian, are not Devonian, but are later than the Carboniferous Period. I will now turn to the problem of what they really are. It is a well-known fact that in the Isle of Man the Secondary and Tertiary rocks are wholly absent. This is the view of all those who have examined the island, and is in fact perfectly palpable. The series of older rocks terminates with the upper layers of the Carboniferous Limestone; above this there are nothing but deposits of Quaternary Age. The red conglomerate to which I have referred contains no trace of any Secondary or Tertiary fossils, nor is there the smallest ground for believing that it belongs to either of those series. Does it then belong to the Quaternary beds? This conclusion is inevitable, and, as we shall see, is an exceedingly interesting one.

In the summer of 1872 I visited Norway, and wrote the following brief notice of certain high-level terraces immediately on my return to England, but kept it back that I might first consult some papers on Norwegian terraces that had appeared in the closing numbers of “Scientific Opinion”; these I was not able to meet with for so long a time that I gave up the idea of sending my notice to the press. I am now induced to do so, because I see that the subject of the parallel roads of Glenroy still occupies the attention of geologists, and it may induce some one next summer to examine minutely the Dovre terraces and sand-heaps and their relation to the physical geography of the district. I was merely able to make a flying visit to them, which I delayed my party to do, because they caught my eye so forcibly, as we were driving along the valley.