Fifth edition of the Practical proofs of the soundness of the Hygeian system of physiology, giving incontrovertible testimony to the afflicted, of the inestimable value of Morison's vegetable universal medicines: including, with other matter, 'The Origin of life, and cause of all disease explained;' an entirely new view of the origin of the smallpox virus, and of its being most certainly eradicable, or rendered harmless; and sundry cases of cure, with most important information connected with the successful promulgation of the Hygeian system in the United States of America