As an artist and a scientist, Trouvelot occupies an interesting position within the nineteenth-century discussion of objectivity. In one letter to Holden, not displayed here, he suggests that a good observer must possess both "fire and ice." It seems that for Trouvelot, interfacing with the cosmos was both an aesthetic experience and an act of cool judgement; we can perhaps sense this tension between sensation and sensibility in his illustrations, two of which are displayed in this exhibition. In another letter, displayed here, he urges Holden to consider the capacities of the eye and the advantages of observing the cosmos directly through the telescope, rather than relying secondarily on the images produced by the camera.
An oversized set of prints of Trouvelot's drawings (approximately 2' by 3') was gifted to the Lick Observatory. These prints are accessible through UCSC Special Collections, or they can be viewed online through the digital collections of the New York Public Library.
The archives also contain several illustrations created by astronomers at the Lick Observatory. Displayed here are visual materials created by Holden, James Keeler, and James Schaeberle, as well as images collected in the archives from astronomers at other observatories. Additionally, on display in Case 3: In Relation to Nature are personal scrapbooks and copybooks, in which Lick astronomers recorded their observations both numerically and pictorially, using sketches, light distribution charts, and even vividly descriptive notes alongside measurement logs.