When the influence of the constitution of the air upon human bodies is duly considered, it will appear that this subject holds a very near connexion with what has just preceded. The study of diseases and symptoms, which derive their origin from this source, should undoubtedly claim attention from every physician, who wishes to trace the occult cause of a sudden popular sickness, and who, by due observance of the peculiar symptoms and maladies accompanying every change in the atmosphere, will be the better prepared and instruded to counteract their effects upon health.

I do not, however, take upon me...

The manufactures produced from this valuable plant having already been discussed, it remains only to say, that the proper manner of its cultivation in different soils, and the whole process of the manufacture of its expressed juice, would lead into too extensive a field. The cultivation of it is now, in general, well understood in this island, and the manufacture daily improving; a knowledge of them, perhaps, as things are at present circumstanced, is best acquired by practice and experience, since we have no rules as yet laid down, suitable to every peculiarity of situation; nor history of soils and...