What does DR. Moreau look like

From the text:

He sat in my deck chair, a cigar half consumed in his white, dexterous-looking fingers. The light of the swinging lamp fell on his white hair; he stared through the little window out at the starlight.

And forthwith, beginning in the tone of a man supremely bored, but presently warming a little, he explained his work to me. He was very simple and convincing. Now and then there was a touch of sarcasm in his voice. Presently I found myself hot with shame at our mutual positions.