1. SUGGESTIONS AS TO COLLECTING Use one serial set of field numbers for all specimens (including "pick-ups", nests and eggs, and wet preservatons), continuing number from last trip. Number notebook pages consecutively from where left off previously. Always enter altitude of locality for each speci- men, both on tags and in notebooks; always give county as well as exact place; for example: "3 mi. NE Lone Pine, 3700 ft., Inyo Co., Calif.". Note proper abbre- vation for California. Attend minutely to proper punctuation. Record data on all tags in following order (in 3 or 4 lines, as necessary): Sex, your field number, your name; locality; number and size of embryos; measurements, weight, date. All miscellaneous material should bear labels stating to what species it pertains, with notebook page references. Nests should be "threaded" and have labels attached to them (not only to container). Folders for plants should each be inscribed with full data, as per usual botanical practice. Eggs should have labels placed within containers in which packed. Miscellaneous material should be packed with as great care as skins or skulls. Check pouch contents, feces, etc., should be placed in small envelopes or boxes, with labels inserted, and such containers packed in a stout box to prevent crushing. In collecting specimens, keep improving technique; turn out smooth, symmetrical, firm skins of birds and mammals. For frequent reference, carry with you a copy of R. M. Anderson's "Methods of Collecting and Preserv- ing Vertebrate Animals." If possible, keep all skins with you until thoroughly dry. In preparing for ship- ment, take special pains to pack specimens tightly so that they will not move lengthwise of the box. Much of smoothness and symmetry may be lost through loose pack- ing. In cleaning skulls of bird skins, avoid removing