Every person who shall, in pursuance of notice from any person appointed by such justices as aforesaid or any officer or other person appointed by and acting under the orders of the master general and board of ordnance, attend and accompany any other person appointed by such justices as aforesaid, or any officer or such person appointed by and acting under the orders of the master general and board of ordnance, in the ascertaining, surveying, and marking out the boundary of any county under the provisions of this Act, shall receive, and shall be entitled to receive for his trouble and loss of time, such sum of money or allowance as the master general and board of ordnance shall think fit, for every day during which such person shall be employed by or engaged with such person appointed by such justices as aforesaid, or any officer or other person appointed by and acting under the orders of the master general and board of ordnance, in the execution of this Act, upon a certificate to be signed by such person appointed by such justices as aforesaid, or any officer or other person appointed by and acting under the orders of the master general and board of ordnance.