been constructed with a series of overlays of actual grid track, environmental data, and parametric analysis sectors. This pictorial summary of grid activities has been photographed; these photographs serve as figures in this report. The negatives are included and for filing in the Washington office. The grid was divided into nine analysis areas (see Appendix A for coordinates of these divisions). Eastern Grid Survey 11 Discussion: Sixty degree temperature, winds from the NNW at 8-20 knots, and heavy overcast held throughout the survey. One interesting area was encountered at ca. 34°56'元 - 122°50' west where two slicks were noted. The slicks were apparently the result of a confluence of water masses or convention cells. Red Phalaropes were abundant on these slicks. Of interest during this and EGS-10 was the complete lack of Velleta, the "sailors before the wind." It was abundant in June. Diurnal observation 114.5 hours and 1054 miles were recorded. Two species, Leach's Storm Petrels and Red Phalaropes accounted for 85.7 percent of 774 birds recorded. The distribution of these two species prompted us to adopt a new system of grid data analysis. The North-South dividing line has been replaced by two north-south lines yielding three east west sections. Appendix A lists coordinates for divisions and labeling for the sectors. The reader is referred to Figures 2 and 3 for graphic illustration of the advantages of the new analysis system. It allows a more refined and detailed breakdown of quantitative distributions within the grid. SPECIES ACCOUNTS Black-footed Albatross Number recorded: 44 Albatross numbers were relatively constant throughout the survey; were recorded on each day during the survey.