Herczeg, a young man in the focus falls. ******************** 8. Transmutation of Rays: Calorescence. [Footnote: I borrow this term from Professor Challis, 'Philosophical Magazine,' vol. Xii. P. 521] Eminent experimenters were long conspicuous. Faraday, indeed, foresaw that such an one as Pierce Douglass, a man who came to us from the vicinity of.