Special preparation for the daily demands of business is the aim of this valuable little book; supplementary to the regular course in arithmetic both in public and business high schools. _Our text-books cover all the steps of education from the Kindergarten to the University. Our Educational Catalogue is mailed free upon application._ Silver, Burdett & Company Boston . New York . Chicago +----------------------------------------------------------------- + | Transcriber's Note: | | | | Minor typographical errors have been corrected without note. | | | | Punctuation and spelling were made consistent when a predominant | | form was found in this book; otherwise they were not changed. | | | | Ambiguous hyphens at the ends of lines were retained. | | | | Mid-paragraph illustrations have been moved between paragraphs | | and some illustrations have been moved closer to the text that | | references them. | | | | Italicized words are surrounded by underline characters, | | _like this_. Words in bold characters are surrounded by equal | | signs, =like this=. | | | | Duplicated section headings have been omitted. | | | | Pp. 176 and 298: Marthélemy Thimonier changed to Barthélemy | | Timmonier. | +------------------------------------------------------------------+ End of the Project Gutenberg EBook of American Inventions and Inventors, by William A. Mowry and Arthur May Mowry