It will be my endeavour to point out, in this paper, some errors that have crept into photographers' and artists' studios, and I hope to be able to suggest a remedy that will lessen these evils, and elevate photography in the scale of art. The faults in pictorial backgrounds that I invite your attention to, arise from the neglect of the principles of linear and aerial perspective. I do not speak of the errors in perspective that may exist in the backgrounds themselves, viewing them as pictures; but I refer to the manifest fault of depicting the sitter--the principal object--according to one condition of perspective, and the background that is placed behind him according to another. An unpardonable error in any work of art, whether photograph or painting, is to represent a natural object in an unnatural position. By this I do not mean an awkward and constrained attitude, but a false position of the principal subject in relation to the other objects by which it is surrounded. We frequently see portraits, both full-length and three-quarter size, with landscape backgrounds--or a bit of landscape to be seen through a painted or actual window--of the most unnatural proportions in relation to the figure itself. The head of the subject is stuck high in the heavens--sometimes so high that, in relation to the painted landscape, nothing shorter than a church steeple could attain such an altitude. The trees and castles of the pretty landscape, supposed to be behind the sitter, are like children's toys; the mountains are like footballs in size, and the "horizon" is not so much in relation to the figure as the width of a fishpond is to a man standing on one side of it. It must be admitted that artists themselves have set this bad example of departing from truth to give increased importance to their subjects by placing their figures against diminutive backgrounds; but that is a liberty taken with nature which photographers should neither imitate nor allow. Photography is, in all other respects, so rigidly truthful that it cannot consistently sanction such a violation of natural laws.