This section is from the book "Complete Self-Instructing Library Of Practical Photography", by J. B. Schriever. Also available from Amazon: Complete Self-Instructing Library Of Practical Photography.
Developing. Architectural views made under a clouded sky with small stops and long exposures should be developed slowly. In order to restrain the plate and keep it free from fog, several drops of a 10 per cent. bromide solution should be added to the developer. This will keep the shadows clear, and a splendid crisp negative will be the result.
Recording Results. It is very important that careful record be kept during all experiments. The time of exposure, conditions governing light, number of each plate and kind of plate, developer, etc., are of great value; for upon the accuracy of these records depends, to a great extent, your future success, as you should profit by these first results. Make good proof prints from each experiment, making notations on the back and preserve them in your proof file for future guidance.