A money lender to whom a sum of money is given to invest is bound to exercise reasonable skill and prudence; by his business he holds himself out as possessing competent skill to determine what reasonable care and prudence requires; if he fails to exercise these, and through his negligence loss occurs, he is liable to make it good. McFarland v. McClure (Pa. Sup. Ct. 1886), 5 A. 50. See also Secs. 350, 403.