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inhabited by giant lizards and rattlesnakes which made it, to 
some members of our party, a real paradise. 
en passed over to Tiburon Island. The flora of this 
island is of Sonoran origin. Here we found the giant cereus 
(Carnegiea gigantea) for the first and only ti 
Two short landings were made at San oon where some 
fine cactus specimens were collected, some of which are unde- 
scribed. 
At Catalina Island we spent several hours although the vessel 
did not cast anchor. This island is the type locality of Echin- 
ocactus Diguetii, the giant cactus among the _ barrel-cactuses. 
Plants Io to 12 feet high are common, while plants 15 feet high 
are occasionally seen. One plant was measured which was 88 
inches in circumference. This plant is the most characteristic 
plant on the island, dotting the hillsides and valleys everywhere. 
Five other cactuses were gathered. Later the same day we were 
dropped off at Santa Cruz Island while the vessel drifted down 
the Gulf, returning to pick us up at sundown. e two hours on 
the island were very busy ones, spent in noting the various 
cactuses, of which I saw ten. A most interesting Mamillaria, 
not seen elsewhere, was common, forming large clumps, its sur- 
face densely covered with snowy white spines. Two days were 
spent in coaling the ship at Pichilinque Island. The day before 
the ship left four of our party took a launch and went over to 
Espiritu Santo Island, where we were picked up the next morn- 
ing by the ‘‘Albatross.”” The island is the headquarters of the 
pearl fisheries of the Gulf. As at all settlements in Lower 
California, goats are here in abundance and the native vegetation 
has consequently suffere 
Our last collecting was ane on Ceralbo Island just before we 
talina and Santa Cruz, it is uninhabited and has not been 
interfered with in any way by man or domestic animals. 
The botanical results of the trip were extremely satisfactory. 
Two sets of 900 plants each were collected. This is not a large 
collection to make in two months under ordinary circumstances, 
but it must be remembered that we were in a desert country, 
