1. In gathering together the material for this volume, the editors have not lost sight of the fact that not alone the amateur, but the professional also, is frequently desirous of making portraits in the home, with all the surroundings of home that help to make up the effective studies now so much in vogue.

2. As a foundation for portrait work in the home, a knowledge of the photographing of interiors is most essential. This teaches us the handling of furniture and similar accessories; the treatment and control of light in small areas; the correct judging of exposures under difficult circumstances.

3. From this branch of the work, it is but a step to the introduction of figures into the picture, and portraiture in the home follows as a natural sequence. We can thus see that successful At-home Portraiture is dependent, to a great extent, on the correct handling of interiors.

4. The making of interior photographs differs considerably from exterior work, yet the general principles of manipulating the camera are the same. One has to learn the value of the light; also exercise his power of selection and arrangement to a different degree, as the subject material is of another type.

5. With a thorough knowledge of the subjects just mentioned, and the ability to obtain technically correctly lighted negatives, flashlight photography will present no difficulties, for the only difference between flashlight photography and ordinary photography, where daylight is used, is in the source of illumination. For this reason, it is very important that one refrain from attempting flashlight work until one has a comparatively good idea of the manner in which ordinary work is produced, using daylight as the illuminant.

6. At this juncture particular attention should be given the subject of lenses, as a knowledge of their wide range of use is of inestimable value. The training that should have resulted from studying the first five volumes of this library now demands more than a passing acquaintance with the lens and shutter; therefore, careful study should be made of the various chapters forming the latter portion of this volume. Of particular value is Mr. S. Lawrence's talk on "Photographic Lenses - Their Nature and Use."

NYDIA Study No. i   See Page 401. WILL. H. Walker

NYDIA Study No. i - See Page 401. Will. H. Walker.

7. The apparatus necessary for the various phases of work taken up in detail in this volume is easily constructed, or bought at little expense, and, together with the instruction given, will enable anyone to produce excellent results.

8. We urge a systematic study of each chapter and every paragraph in each chapter. Only in this way can familiarity with the various processes and manipulations be gained. Should difficulties be encountered, reference to the special chapters will obviate them. Prevention and Remedy are given in concise terms, following each special subject. All practice work should be preceded by a careful study of these Difficulty Chapters. Only in this way will the greatest amount of benefit be derived.

9. In order that the best results be obtained, and that waste of material be reduced to a minimum, proofs should be made from all experimental results, and these filed, together with the data describing the manner in which the experiment was performed, in a proof file. A regular letter file, which is arranged alphabetically and may be procured from any stationer, will answer this purpose admirably.