Evidences of the shell deposits seen around this city, not being produced by the aborigines, and the period of their origin being post tertiary

Read by H.S Wintle, 12th April, 1864 .A Paper which I read before this Society, in November last, on what I was then pleased to consider, and still believe to be, post tertiary marine deposits, having called forth expressions of strong doubt with regard to the position I assigned to them in geological scale, and also to the mode of their origin, I here beg to furnish the data on which I base the conclusions therein set forth, and which I think will show that such conclusions are not so rash or premature as may have been imagined.