Examines the history of the heliograph, whether it was utilized successfully or not and how it contributed in Arizona and New Mexico during the Geronimo Campaign of 1886.

Typescript. Resource is a part of (and contains a copy of) Lester L. Miller, Jr.'s USAFAS Special Bibliography 104, "The Heliograph, A Bibliography".

Chapter IIntroduction -- The heliograph--a historical sketch -- Objectives of the study -- The study area -- Method of study -- Justification -- Chapter II The early heliographs and their language -- Language of the sun--the heliograph code -- Chapter III Site and situation--the Southwest -- Chapter IV Geronimo--The Apache Campaign of 1886 -- Chapter V Conclusions -- Military campaigns after 1886 -- Appendix A Heliograph report--2Lt. A. M. Fuller, Department of Arizona -- Appendix B Heliograph stations in New Mexico descriptive notes, 1Lt. E. E. Dravo -- Appendix C Reconnaissance reports -- Appendix D Weather reports 1886 -- Appendix E General heliograph system 1886 -- Appendix F General heliograph system 1890 -- Appendix G Report of heliograph stations in Arizona, July 1886 -- Appendix H Instructions, heliograph exercise 1890 -- Appendix I Instructions for heliograph operations -- Appendix J Maps and overlays.