I have been speaking hitherto of Colombian Odontoglossums, which are reckoned among the hardiest of their class. Along with them, in the same temperature, grow the cool Masdevallias, which probably are the most difficult of all to transport. There was once a grand consignment of Masdevallia Schlimii, which Mr. Roezl despatched on his own account. It contained twenty-seven thousand plants of this species, representing at that time a fortune. Mr. Roezl was the luckiest and most experienced of collectors, and he took special pains with this unique shipment. Among twenty-seven thousand two bits survived when the cases were opened; the agent hurried them off to Stevens’s auction-rooms, and sold them forthwith at forty guineas each. But I must stick to Odontoglossums. Speculative as is the business of importing the northern species, to gather those of Peru and Ecuador is almost desperate. The roads of Colombia are good, the population civilized, conveniences abound, if we compare that region with the orchid-bearing territories of the south. There is a fortune to be secured by anyone who will bring to market a lot of O. noeveum in fair condition. Its habitat is perfectly well known. I am not aware that it has a delicate constitution; but no collector is so rash or so enthusiastic as to try that adventure again, now that its perils are understood; and no employer is so reckless as to urge him. The true variety of O. Hallii stands in much the same case. To obtain it the explorer must march in the bed of a torrent and on the face of a precipice alternately for an uncertain period of time, with a river to cross about every day. And he has to bring back his loaded mules, or Indians, over the same pathless waste. The Roraima Mountain begins to be regarded as quite easy travel for the