@book{84121,
	author = {Various},
	title = {Scientific American, Vol. XXXIX.—No. 6. [New Series.], August 10, 1878},
	publisher = {Project Gutenberg,},
	year = {2013},
	address = {Salt Lake City, UT :},
	note = {Release date is 2013-07-22},
	url = {https://www.gutenberg.org/ebooks/43282}
}