NATURALISTS AND VOYAGERS MENTIONED _ xlix 
Paxxas, Peter Simon (1741-1811), traveller and naturalist, was 
born at Berlin, and in 1767, at the invitation of the Empress Catherine, 
accepted the professorship of Natural History at St. Petersburg. He 
went to Siberia in 1768 to observe the transit of Venus, and spent the 
following six years travelling there, penetrating to the frontiers of 
China, He remained in Russia till 1810, when he returned to Berlin. 
He was an indefatigable naturalist, and published many works on 
natural history, of which the greater part deal with the flora, fauna, 
and ethnology of the Russian possessions, 
Pennant, Thomas, LL.D. (1726-98), Scotch naturalist and 
antiquary. He was the author of “British Zoology” (1766) ; 
“ Synopsis of Quadrupeds” (1771), afterwards enlarged and published 
as the “ History of Quadrupeds” (1781); “Genera of Birds” (1778), 
etc. He was a constant correspondent of Gilbert White of Selborne. 
Piso, William (17th century), Dutch naturalist and doctor, 
accompanied Prince Maurice of Nassau as his physician on his voyage 
to Brazil in 1636, taking with him two young German savants, 
Marcgrav (q.v.) and Kranitz. The observations which he and 
Marcgrav made were published in 1648 under the title of “ Historia 
naturalis Brasiliz.” He was the first to introduce into Europe and 
to describe ipecacuanha and its medicinal properties. 
Quiros, Pedro Fernandez de (died 1614), Spanish navigator, 
accompanied Mendana in 1595 to the Solomon and Santa Cruz Islands. 
On the death of Mendana, Quiros brought the remains of the fleet to 
Manilla, and then returned by South America to Madrid. Obtain- 
ing permission to search for the supposed Southern Continent, he set 
out again from Lima in 1605, and discovered “ Dezana,” afterwards 
called Osnaburg Island. In the following year he discovered Otahite, 
which he named “Sagittaria.” Proceeding westwards he then dis- 
covered “Terra del Espiritu Santo,” one of the New Hebrides. From 
this point he turned back to Mexico, and died at Panama in 1614. 
REMBRANTZ VON Nrmrop, Dirk (1610-82), Dutch astronomer and 
mathematician, published, besides several works on mathematics and 
astronomy, a short account of Tasman’s voyage. 
RoecEweEen, Jacob (1659-1729), Dutch navigator, was at one time 
counsellor of the Court of Justice at Batavia. In his voyage round the 
world he started from Holland in 1721, reached the Falkland Islands, 
and sailed south as far as 624° S. lat., then went to Chile, Juan 
Fernandez, Easter Island (of which he was the discoverer), New 
Britain and Batavia. An account of his voyage was published in 
1728. 
Rumpnius or Rumpr, George Eberhard (1627-1702), German 
doctor and botanist. He went out to the Dutch possessions in the 
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