In Boston & Maine Railroad v. Piper, 246 U.S. 439 (1918), a provision in exactly these terms was held "illegal and consequently void," as an attempt by the carrier to exonerate itself from loss negligently caused by it. This is the only provision in the bill of lading, as pleaded, which is applicable to a claim for delay, such as the shipper made in this case, and since it is void there is nothing in the contract for carriage on which the five-day limitation could operate, for it applied in terms only to claims "for damages which may accrue to the said shipper under this contract."