Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: action of the heat recuperator in the regenerative gas furnace. The fundamental conditions are: ? 1. That aqueous vapour and carbon compounds are present in stellar or interplanetary space. 2. That these gaseous compounds while in a state of extreme attenuation are capable of being dissociated by radiant solar energy. 3. That these dissociated vapours are capable of being compressed into the solar photosphere by a process of interchange with an equal amount of reassociated vapours, this interchange being effected by the centrifugal action of the Sun himself. If these conditions could be substantiated, we should gain the satisfaction that our Solar System would no longer impress us with the idea of prodigious waste through dissipation of energy into space, but rather with that of well-ordered, self-sustaining action, capable of continuing solar radiation to a very remote future. On Electrical Discharges In Vacuum Tubes And Their Kelation To Solar Physics. An Extract from the Author's Presidential Address to the Meeting of the British Association at Southampton, August, 1882. The means usually employed to produce electrical discharge in vacuum tubes was Ruhmkorff's coil; but Mr. Gassiot first succeeded in obtaining the phenomena by means of a galvanic battery of 3,000 Leclanche cells. Dr. De La Rue, in conjunction with his friend Dr. Hugo Miiller, has gone far beyond his predecessors in the production of batteries of high potential. At his lecture On the Phenomena of Electric Discharge, delivered at the Royal Institution in January, 1881, he employed a battery of his own invention consisting of 14,400 cells (14,832 Volts), which gave a current of 0-054 Ampere, and produced a discharge at a distanceDISCHARGES IN VACUUM TUBES. 23 of 071 inch between the term...