Manson was unfortunate that he could not investigate his theory as he was not in malaria endemic country such as India, where it could be experimentally proven. But fortunately he met a British army surgeon Ronald Ross, who was on vacation while serving in the Indian Medical Service in India.[37][38] In November 1894, he revealed to Ross with his hands on Ross' shoulders, saying, "Do you know, I have formed the theory that mosquitoes carry malaria just as they carry filaria."[4]