Document Collection Contents The document collection contains documentation files, where available, for this bundle. All document files will have an accompanying label file to describe content and structure. Label files have the same name as the main document file, with an extension of ".xml". beckman_spectroreflectometer.txt - Beckman DK2A Spectroreflectometer - This document describes the BeckmanDK2A Ratio Recording Spectroreflectometer. The information has been extracted from Adams and McCord (1970). bundle_description.txt - Bundle description for the gbo.meteorite.gaffey.lab-spectra bundle - A document describing the content and structure of the bundle. ref.txt - Reference List - The reference list for the bundle. multi-host.beckman_dk2a_spec.txt - Description Document for Beckman DK2A Ratio Recording Spectroreflectometer - A description of the Beckman DK2A Ratio Recording Spectroreflectometer instrument AA_Document_Index.txt - Document Index - The file you are reading. collection_gbo.meteorite.gaffey.lab-spectra_document_inventory.csv - Collection Inventory - An inventory of document products in this collection.