We returned to Montserrat, where the earthquakes and bad gases had died down after 1936. The investigations of the Commission (Lenox-Conyngham made his visit after I left), came to publication in Powell and MacGregor’s reports on the seismic analysis and the geology. I sent in a report with photographs and charts on the whole chain of volcanoes, in relation to the Montserrat crisis, by comparison with other volcanoes. Lenox-Conyngham wrote an article for _Nature_. MacGregor later published a critical analysis of modern data on the probabilities of eruption in all of the West Indian volcanoes. Perret published a large monograph on Montserrat, illustrated with his beautiful photographs. We passed Martinique by sea, and I saw the huge pile of lava the 1929 eruption had added, to make an entirely new summit to Mount Pelée. Vegetation and habitation had reappeared at St. Pierre, but the mountain was bare. We returned to Hawaii by way of Bermuda, Boston, and Washington, where the temperature was hotter than we had felt in the tropics. Reviewing the journey, I was encouraged to perceive that geology had changed a great deal since the struggle that Hovey and I, after our experience at Mount Pelée, had had to make geological societies realize that changes in the field must be constantly measured. The real obstacles to getting field measurements permanently manned as pure science are lack of money and the fashions of education. Perret and I have been two isolated enthusiasts crying in the wilderness. Any young scientist with photographic skill who will give his life to living with and reporting upon a single volcano group can make a great contribution to science. He must have suitable financial backers and a publication agency and instruments not dependent upon frequent eruptions. What volcano science needs most is permanent dwellers, using all the resources of sensitive geophysics and chemistry and dwelling close to craters or solfataras. Such lands as the Taupo District of New Zealand are ideal, but not when observed at a distance. Wairaki is now under investigation for commercial power. Hilo is being critically examined for a lava diversion scheme. But these projects are not what I mean, and are not pure science. The personal devotion of a lifetime, as in the cases of Pasteur or Schweitzer, is what produces the emergent evolution of true science.