Cover created by Transcriber and placed in the Public Domain.

Punctuation and spelling were made consistent when a predominant preference was found in this book; otherwise they were not changed.

The original text contained many typographical errors. The simple ones were corrected without comment here; others are noted below.

Unbalanced quotation marks were corrected, as proper placement always could be determined.

Some typographical errors probably remain undetected.

Ambiguous hyphens at the ends of lines were retained; occurrences of inconsistent hyphenation have not been changed.

Text uses both “Acadamy” and “Academy”; both retained here.

Page 336: “The disagreeable sensation experienced by Dr. Siemens in the stove-heated railway cars, etc., were probably due to this” was printed that way. Either “sensation” should be “sensations” or “were” should be “was”.