That only those are eligible to this home who are, first, citizens of the state of Pennsylvania, and, second, who have worked in, around and about the coal mines of Pennsylvania for a period of at least twenty-five years, and have reached the age of sixty years; unless, (a) an employé has been so seriously injured in, around and about the mines as to be physically incapacitated for further labor, in which event application can be made in writing, setting forth his physical condition, and such application shall be sent to the secretary or one of the trustees of the said home; then the said trustees shall authorize the physician of the miners' home, and one other, to ascertain the condition of the said applicant; and if it is proven that the injury has incapacitated said applicant, and it is so certified by the said examining physicians, then the certificate shall admit his into the home; or, unless, (b) an employé has become a victim of what is commonly called “miner's asthma;” then such person can apply to the secretary or one of the trustees of the said home for admission into the said home because of such affliction; whereupon the trustees shall name a home physician, and one other, to examine such applicant; and if it is found that such applicant is suffering from said miner's asthma, in such a way as to physically incapacitate him from earning his livelihood in the mines, or otherwise, and the physicians so certify, then such certificate shall admit him into the home.