DescriptionPopular Science Dec 1918 p68 - History of boat propulsion, Water caterpillar.jpg
English: The water caterpillar or track drive propulsion for boats predated the use of land based tracked vehicles by about 50 years.
Date
Source
Popular Science, Dec 1918, p68, Printed in the United States
Scanned by Google Books
Uploaded by User:DMahalko, Dale Mahalko, Gilman, WI, USA -- Email: dmahalko@gmail.com
Author
Unknown authorUnknown author
Licensing
Public domainPublic domainfalsefalse
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{{Information |Description={{en|1=The water caterpillar or track drive propulsion for boats predated the use of land based tracked vehicles by about 50 years. }} |Source=Popular Science, Dec 1918, p68, Printed in the United States, Scanned by Google Books
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