... suspect to be the case, though I cannot as yet bring evidence to prove it, is, that the forests of Chontales spread uninterruptedly into Costa Rica, but that towards the north and north-west a decided break occurs, and that this break determines the range of the prevalent Costa Rican and Guatemalan forest forms."* (* "The Ibis" July 1872 page 312.) I can confirm Mr. Salvin's supposition. The San Juan river forms no greater break in the forest than a dozen other rivers that run through it and fall into the Atlantic. But a decided interruption ... — The Naturalist in Nicaragua • Thomas Belt
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