Of all the propositions offered President Lincoln seemed satisfied with two--one was for the establishment of a colony in the harbor of Chiriqui in the northeastern section of the State of Panama,[22] near the republics of New Granada and Costa Rica. The situation seemed favorable not only because of the ordinary advantages of soil and climate but also because of its proximity to a proposed canal across the Isthmus of Darien and because of its reputedly rich coal fields. There were two objections to this plan. One was the existence of a dispute over territory between the republics of Costa Rica and Granada. The other grew out of a specific examination of the coal fields by Professor Henry of the Smithsonian Institute.[23] His report doubted the value of the coal bed and advised a more thorough examination before closing the purchase. Before the project could be examined a more acceptable proposition appeared. In addition it also developed that there was opposition to Negro emigration from several of the States of Central America.[24] An effort was then made to establish a colony on the island of A'Vache in the West Indies. This colony was described in a letter to the President by Bernard Kock, represented to be a business man. This site was described as the most beautiful, healthy and fertile of all the islands belonging to the Republic of Hayti, and in size of about one hundred square miles. "As would be expected," writes Kock, "in a country like this, soil and climate are adapted for all tropical production, particularly sugar, coffee, indigo, and more especially cotton which is indigenous. Attracted by its beauty, the value of its timber, its extreme fertility and its adaptation for cultivation, I prevailed on President Geffrard of Hayti to concede to me the island, the documentary evidence of which has been lodged with the Secretary of the Interior."[25] On December 31, 1862, there was signed a contract by which, for a compensation of $50 per head, Kock agreed to colonize 5,000 Negroes, binding himself to furnish the colonies with comfortable homes, garden lots, churches, schools and employ them four years at varying rates. He further agreed to obtain from the Haytian government a guarantee that all such emigrants and their posterity should forever remain free, and in no case be reduced to bondage, slavery or involuntary servitude except for crimes; and they should specially acquire, hold and transmit property and all other privileges of persons common to inhabitants of a country in which they reside. It would be further stipulated that in case of indigence resulting from injury, sickness or age, any such emigrants who should become pauperous should not thereupon be suffered to perish or come to want, but should be supported and cared for as is customary with similar inhabitants of the country in which they should be residents.[26]