For instance, Bickley's medicine-case which lay open showing the little vulcanite tubes, a few instruments and other outfit, engaged his particular attention, and I saw at once that he understood what it was.

Thus his arm still smarted where the needle had been driven in and on the blanket lay the syringe.

He looked at his arm, then looked at the syringe, and nodded.

The paraffin hurricane lamps also seemed to interest and win his approval.

We two men, as I thought, attracted him least of all; he just summed us up and our garments, more especially the garments, with a few shrewd glances, and then seemed to turn his thoughts to Tommy, who had seated himself quite contentedly at his side, evidently accepting him as a new addition to our party.
I confess that this behaviour on Tommy's part reassured me not a little.
I am a great believer in the instincts of animals, especially of dogs, and I felt certain that if this man had not been in all essentials human like ourselves, Tommy would not have tolerated him.