The Three Kinds of Cod-Liver Oil, Comparatively Considered with Reference to Their Chemical and Therapeutic Propertiesby L. J. De Jongh; Edward Carey;L'Huile de Foie de Morue envisagée sous tous les Rapports comme Moyen Thérapeutiqueby L. J. De Jongh;Cod-Liver Oil: Causes of Its Frequent Inefficacy, with Remarks on the Superiority of the Light Brown over the Pale Oil, Etc., Etc.by L. J. De Jongh;On the Changes Produced in the Blood by the Administration of Cod-Liver Oil and Cocoa-Nut Oilby Theophilus Thompson