BOTANICAL INDEX, 
63 
[It may assist the reader in forming an idea of the remoteness of Cincinnati from 
civilization, as well as the difficulties of a journey in the new West in early times, to 
mention the fact as given in Judge Burnet’s letters that the average time required 
to make a trip from Cincinnati to New Orleans and hack was six months, and that the 
first regular line of boats between Cincinnati and Pittsburgh was established in 1794, 
and comprised two perogue or keel boats, which required eight weeks to make the 
round trip, so that one boat left Cincinnati once in four weeks. The only kinds of 
water crafts on the Ohio river were the perogue or keel boats, flat boats and canoes, 
and were propelled by ores or setting poles. These crafts, often known as arks, Ken- 
tucky boats, etc., were necessarily small, and the cargoes proportionately light, but 
were still in use until the introduction of steam, in 1817, and still the flat boat is very 
extensively used on all the Western rivers for transporting bulky merchandise.] 
