Quest 1948 Journal 111 June 11 La Laguna, 6200+ ft, Sierra de la Laguna, Baja California still further up the steep slopes, the trees suddenly became shorter and more sparse, but oak trees became visible although those seen on all but the top slopes of the mountains appeared dead and clothed in masses of yellow, dried leaves. Palm trees were seen in a deep canyon to our right when we were nearing the summit and as we neared the top green oaks and Pinyon pines were seen. We crossed over into La Laguna through a large and prominent saddle in the crest of the mountains - a break visible from parts close to the arroyo and possibly visible from the valley floor south of Todos Santos. Just over the crest, all is different and very similar to forested sections of Upper Sonoran parts of Alta California. Shot bats last night and obtained one Eptesicus fuscus. The bats did not appear until about 7:15 P.M. and were first seen feeding over the oak and madrone trees of the wooded section. Later they began to feed among them and around their edges where the forest met the flat. At dark the bats were seen feeding over the flat. Three sizes were seen, small, medium, and large, the smallest probably being Pipistrellus hesperus or Myotis californicus, the larger ascertained to be Eptesicus fuscus. Dr. Benson obtained one Myotis californicus last night.