Beginning at the junction of Falmouth street, and a forty-foot street now called Caledonia street; thence running Southwest on said Falmouth street one hundred and sixteen and eighty-eight hundredths feet; thence Northwest at a right angle to a point where a line drawn at right angles to said forty-foot street at a point thereon one hundred and sixteen and fifty-five hundredths feet Northwest from the point of beginning meets the said boundary at right angles to Falmouth street, sixty-six and seventy-eight hundredths feet; thence at an obtuse angle on said line at right angles to said forty-foot street sixty-seven and thirty-five hundredths feet to said forty-foot street; thence Southeasterly on said forty-foot street one hundred and sixteen and fifty-five hundredths feet to the point of beginning; containing seven thousand eight hundred and twenty-eight square feet more or less, and subject to the agreements and restrictions mentioned in a deed recorded in Suffolk Registry of Deeds Lib. 1719, Fol 83 so far as the same are now legally operative. This deed of conveyance is made upon the following express trusts and conditions which the said grantees by accepting this deed agree and covenant for themselves and their successors in office to fully perform and fulfil. 1. Said grantees shall be known as the "Christian Science Board of Directors," and shall constitute a perpetual body or corporation under and in accordance with section one, Chapter 39 of the Public Statutes of Massachusetts.[5] Whenever a vacancy occurs in said Board the remaining members shall within thirty days fill the same by election; but no one shall be eligible to that office who is not in the opinion of the remaining members of the Board a firm and consistent believer in the doctrines of Christian Science as taught in a book entitled "SCIENCE AND HEALTH," by Mary Baker G. Eddy beginning with the seventy-first edition thereof. [5] The deacons, church wardens, or other similar officers of Churches or religious societies, and the trustees of the Methodist Episcopal churches, appointed according to the discipline and usages thereof, shall, if citizens of this commonwealth, be deemed bodies corporate for the purpose of taking and holding in succession all grants and donations, whether of real or personal estate, made either to the and their successors, or to their respective churches, or to the poor of their churches. 2. Said Board shall within five years from the date hereof build or cause to be built upon said lot of land a suitable and convenient church edifice, the cost of which shall not be less than fifty thousand dollars.