3§ THE A B C OF TAXATION provide at your own expense, but for the use of which you can afford to pay in proportion as you use them. It is these outside things, available by their proximity, for which you are called upon to pay I300 a year. To enumerate some of them specifically, they are, in a town or city lot, right and ease of access to water, health inspection, sewerage, fire protection, police, schools, libraries, museums, parks, play-grounds, steam and electric railway service, gas and electric lighting, telegraph and telephone service, subways, ferries, churches, public schools, private schools, colleges, universities, public buildings — utilities which depend for their efficiency and economy on the character of the government; which collectively constitute the economic and social advantages of the land; and which are due to the presence and activity of popu lation, and are inseparable therefrom, including the benefit of proximity to and command of facilities for commerce and communication with the world — an artificial value created primarily through public expenditure of taxes. In practice, the term “land” is erroneously made to include destructible elements which require constant replenishment; but these form no part of this economic advantage of situation or site value. (c) In other words, you are to pay I300 a year for the value of what the law calls the “ rights and privileges thereto pertaining,” specified in every deed of land conveyance. This I300 is ground rent, “what the land is worth for use.” Proposition 2.— Assuming this piece 0} land to he free from all charges and incumbrances, and assuming the current rate 0} interest to be 5 per cent per annum,