Gettysburg--The Second Day

by Harry W. Pfanz

2011 · UNC Press Books

The second day’s fighting at Gettysburg — the assault of the Army of Northern Virginia against the Army of the Potomac on 2 July 1863 — was probably the critical engagement of that decisive battle and, therefore, among the most significant actions of the Civil War. Harry Pfanz, a former historian at Gettysburg National Military Park, has written a definitive account of the second day’s brutal combat. He begins by introducing the men and units that were to do battle, analyzing the strategic intentions of Lee and Meade as commanders of the opposing armies, and describing the concentration of forces in the area around Gettysburg. He then examines the development of tactical plans and the deployment of troops for the approaching battle. But the emphasis is on the fighting itself. Pfanz provides a thorough account of the Confederates' smashing assaults — at Devil’s Den and Litle Round Top, through the Wheatfield and the Peach Orchard, and against the Union center at Cemetery Ridge. He also details the Union defense that eventually succeeded in beating back these assaults, depriving Lee’s gallant army of victory. Pfanz analyzes decisions and events that have sparked debate for more than a century. In particular he discusses factors underlying the Meade-Sickles controversy and the questions about Longstreet’s delay in attacking the Union left. The narrative is also enhanced by thirteen superb maps, more than eighty illustrations, brief portraits of the leading commanders, and observations on artillery, weapons, and tactics that will be of help even to knowledgeable readers. Gettysburg — The Second Day is certain to become a Civil War classic. What makes the work so authoritative is Pfanz' mastery of the Gettysburg literature and his unparalleled knowledge of the ground on which the fighting occurred. His sources include the Official Records, regimental histories and personal reminiscences from soldiers North and South, personal papers and diaries, newspaper files, and last — but assuredly not least — the Gettysburg battlefield. Pfanz’s career in the National Park Service included a ten-year assignment as a park historian at Gettysburg. Without doubt, he knows the terrain of the battle as well as he knows the battle itself.

Practical Petroleum Geochemistry for Exploration and Production

by Harry Dembicki

2022 · Elsevier

Practical Petroleum Geochemistry for Exploration and Production, Second Edition provides readers with a single reference that addresses the principle concepts and applications of petroleum geochemistry used in finding, evaluating, and producing petroleum deposits. The revised volume includes a new chapter on environmental forensic applications of petroleum geochemistry. With the current emphasis on environmental issues (pollution, climate changes, and corporate responsibility), information about how petroleum geochemistry can be used to recognize these problems, determine their source, help identify who is responsible, and how these problems may be mitigated are vital to efficient and economical operation of a project from exploration to production to abandonment. Practical Petroleum Geochemistry for Exploration and Production, Second Edition will continue to serve as a foundational reference to understanding the underpinning of the science, as well as a source of references that the reader can use to find detailed descriptions of methods and protocols. - Emphasizes the practical application of geochemistry in solving exploration and production problems - Features more than 200 illustrations, tables, diagrams, and case studies to underscore key concepts - Authored by an expert geochemist with over 40 years of experience in field-based research, applications, and instruction - New edition includes a chapter on environmental issues (impact, climate change, pollution, and corporate responsibility), as well as expanded coverage of topics such as hydrates as unconventional resources; geomicrobial methods (especially DNA analysis) and the use of sea surface slicks from seafloor seeps in surface geochemistry; using GC x GC and asphaltene FTIR in oil correlation studies; and interpretation isotope data for the maturity of thermogenic natural gas

Gettysburg--Culp's Hill and Cemetery Hill

by Harry W. Pfanz

2011 · UNC Press Books

In this companion to his celebrated earlier book, Gettysburg — The Second Day, Harry Pfanz provides the first definitive account of the fighting between the Army of the Potomac and Robert E. Lee’s Army of Northern Virginia at Cemetery Hill and Culp’s Hill — two of the most critical engagements fought at Gettysburg on 2 and 3 July 1863. Pfanz provides detailed tactical accounts of each stage of the contest and explores the interactions between — and decisions made by — generals on both sides. In particular, he illuminates Confederate lieutenant general Richard S. Ewell’s controversial decision not to attack Cemetery Hill after the initial southern victory on 1 July. Pfanz also explores other salient features of the fighting, including the Confederate occupation of the town of Gettysburg, the skirmishing in the south end of town and in front of the hills, the use of breastworks on Culp’s Hill, and the small but decisive fight between Union cavalry and the Stonewall Brigade.