When a promissory note or bill of exchange has been dishonoured by non-acceptance or non-payment, the holder may, within a reasonable time, cause such dishonour to be noted and certified by a notary public. Such certificate is called a protest. Protest for better security.—When the acceptor of a bill of exchange has become insolvent, or his credit has been publicly impeached, before the maturity of the bill, the holder may, within a reasonable time, cause a notary public to demand better security of the acceptor, and on its being refused may, within a reasonable time, cause such facts to be noted and certified as aforesaid. Such certificate is called a protest for better security.