DR. GOULD, the director of the new Observatory in the Argentine Confederacy, continues to send encouraging accounts of the progress of the great asiromical works that he has there undertaken. Having laboured to determine accurately the relative brightness of all the stars in the southern heavens visible to the naked eye, he announces that a few weeks will enable him to begin the preparation of this work for publication. Great care has been taken to make a thorough and accurate comparison of the results of the four assistants, and the rule has been to determine the brightness of all the stars down to the 7.3 magnitude, in order to make sure of losing none as bright as the seventh.
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Astronomy in the Argentine Confederacy . Nature 9, 264 (1874). https://doi.org/10.1038/009264a0