(1) The declaration alleges an invitation to the plaintiff by the defendants to enter the building ; the duty of the defendants to take and use all proper means and precautions in the use of the elevator on the premises, to prevent persons lawfully there by invitation of the defendants from falling into the elevator-well; and a neglect of that duty. Our opinion is that it is sufficient. Beehler v. Daniels, Cornell & Co., 19 R. I. 49, 51 ; Henson v. Beckwith, 20 R. I. 165.