This report describes data collected during an observational study on the Hawaiian monk seal on Laysan Island during April 23 to July 21 1983. The data collected is on population size, reproduction, and factors affecting survival of the endangered species. There is also a description of a "mobbing" by adult males, resulting in death of a subadult female; the haul out of seals on the south ledge; and the transport of a juvenile male to Honolulu to initiate a captive research program.

Uranium in terrestrial volcanic ejecta from mantle-related sources has been analyzed mass spectrometrically. The objective was to seek supporting evidence for or refutation isotopic variations reported by Fried et al. (1985) for some such samples. The possibility that terrestrial U is not of constant isotopic composition is extraordinary. If true, mechanisms for creating the variation must be sought and the lack of homogenization within the earth addressed. Samples of 100 grams or more were processed in order to minimize reagent and environmental (laboratory) blank interference and to permit isolation of large amounts (several to tens of .mu.g) of U for the mass spectrometer (MS) measurements, which utilizes aliquots of (approximately)1 .mu.g. Aliquants from four volcanic samples gave data which indicate enrichments of ₂₃₅U ranging from 0.2% to 5.9% in the 235/238 ratio relative normal uranium ratios. These relative enrichments are consistent with, and in some cases, higher than the 0.18% enrichment reported by Fried et al. (1985) for two volcanic lava samples. However, we were not able to reproduce their results on the Kilauea lava for which they report 0.18% ²³⁵U enrichment. The relative error in our MS ratios is 0.05% -- 0.07%. 1 tab.

This is a report over an observational study on the population of the Hawaiian monk seal collected at Kure Atoll from March 24 to October 6 1987. This study focuses primarily on the female pups of Green Island and Sand Island.

Supplemental paper organized as a series of questions and answers, outlining the reasoning by which the proposed standard for Ada came to acquire certain features and exclude others.