As I read the instrument of transfer, what Guy purported to convey to Long was a building occupying a horizontal stratum of part of the land of which he, Guy, was the registered proprietor. It seems that before the Conveyancing (Strata Titles) Act, 1961 NSW, it was not possible in New South Wales to have a separate certificate of title under the Torrens system for a stratum of land above the surface of the earth. The provisions of the Real Property Act relating to subdivisions were, it seems, not thought to be applicable to such a case. But certificates of title for an estate in fee simple are always expressed to be subject to such encumbrances, liens, and interests as are notified thereon. The existence of a stratum interest could be effectively notified; for it is well established that such an interest is known to the law. At common law a freeholder is the owner not only of the surface of his land, but also of everything above it up to the sky and of everything below it to the centre of the earth. Therefore, at common law, he could dispose of a part of his holding by horizontal subdivision, just as by vertical subdivision. There were objections to this in mediaeval times: see Challis's Real Property, 3rd ed. (1911), p. 54. But by Coke's time these had disappeared. He said: "A man may have an inheritance in an upper chamber though the lower buildings and soil be in another, and seeing it is an inheritance corporeal it shall pass by livery": Co. Litt. 48 b: and see the cases referred to by Roper J. in the New South Wales Land and Valuation Court in Resumed Properties Department v. Sydney Municipal Council [1] . It does not follow from this that the word "land" is in every statutory context to be read as covering interests above the surface of the earth. Jacobs J. held in Re Lehrer and the Real Property Act, 1900-1956 that it was not so when subdivisions had to be considered for the purpose of the Local Government Act, 1919 NSW. However that may be, the very wide denotations given to the word "land" by s. 3 of the Real Property Act leave me in no doubt that when Guy, as registered proprietor for an estate in fee simple, granted and transferred the buildings that were then erected to Long, he conveyed a part of his land, something very different from an easement. The transfer of a building without any reservation of a right by the transferor amounts, I consider, to a conveyance of the exclusive ownership of the building. That is inconsistent with the concept of easement. That conclusion is reinforced when the transfer is coupled with an express right to pull down the building granted and build another in its place.