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Thirty-two letters from Congreave to his father Wilberforce, written during Congreave's school and college years and describing summer fishing trips around New England with his maternal uncle Socrates Whipple. These letters describe materials used in fly fishing during these years, especially materials for tying artificial flies. The letters also contain exquisite, detailed, hand-drawn illustrations of various artificial flies, which Congreave either drew himself or acquired from other sources and then sent to this father.

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Correspondence from and to numerous friends, colleagues, and associates during the years 1952-1992. Correspondents include the French philosopher Michel Foucault, a companon of Congreave's on several fly fishing trips to the French Alps; Julia Child, with whom Congreave discussed recipes for serving trout and salmon; and B. F. Skinner, the Harvard behaviorial psychologist, who Congreave met during his final year at Harvard and whith whom Congreave maintained a correspondence, until Skinner's death in 1990, about their mutual passion for fly fishing. One letter from 1960 recounts Congreave's failed attempt to keep a journal during his fishing trips, which was thwarted when the journal fell into the Housatonic River and washed downstream. At that point Congfreave decided that making copies of his outgoing letters was the best way to document his passion for fly fishing; hence the collection typically includes both incoming and copies of outgoing correspondence.

Scope and Contents note

This data represent a snapshot, or instant in time, from the cosmology simulation. This snapshot was taken at a redshift of 2.0, which is 3.2 billion years after the Big Bang. At this point, the simulation had created 144,546 grids and 69 galaxy clusters with masses of at least 10^14 solar masses.

The primary contents are the parameter files, hierarchy file (description of grid sizes and spatial locations), and grid data. For a complete description of the contents, refer to the Scope and Contents note for the collection.

In the Derived Data subcomponent, there are text, binary, and images files representing halo properties and the projections of various physical fields.

Scope and Contents note

There are three example scripts which are used together for generating images from the datasets and projected fields. The scripts will produce the image files found in the Derived Data-Projections sub-component for each "Data at Redshift" component.