Frankish military duty and the fate of Roman taxation

Frankish kings exacted unpaid military service from their subjects in both Merovingian and Carolingian times. The basis for this right has long been uncertain. A study of the term ‘manse’ as a Carolingian measure of assets brings to light the ostensibly hidden property on whose basis Franks went to war. This military duty reached back to the origins of the Frankish kingdom, when a large share of Roman taxes was awarded in individual allotments to soldiers obligated to serve, otherwise unpaid, when summoned, and heavily fined if they did not. Both demesne and tributary manses – contributory units – were the main part of state resources applied to military costs. They cannot be simply envisaged as components of an agricultural scheme (grand domaine). A tax‐like military obligation was one among several institutions actively surviving from the fifth century to the ninth, and it suggests that Frankish government was more law‐based and administrative than is often allowed.     

The Boer War and the Media (1899-1902)

The South African War that broke out in October 1899 was bothvery old and very new. It was a traditional war, the last ofthe old-fashioned British imperial wars, with cavalry playinga significant part. But it was also a very modern war, for instancein the British Army's use of railways to subdue the Boers inthe early months of 1900, or the use of trench warfare by theBoers along the Modder river. It was disturbingly new in theway that it changed in the autumn of 1900 from a war betweenarmies to a guerrilla war against a civilian population, mostdistastefully so in the British concentration camps set up tohouse Boer women and children. Above all, it was a distinctlycontemporary war in its impact on the media, especially thenewspapers, and in the interaction between the media and thoseparticipating in the fighting. It was a significant war, farbigger than originally expected, and was therefore big news.The British Army, ill-prepared for the original Boer invasionof Natal, at first numbered 75,000 troops. In the end, the Britishand imperial forces totalled 450,000 with contingents from Canada,Australia, New Zealand, and India. The British lost 22,000 men,13,000 of them from disease. The Boers lost about 7,000 in thefield, while another 27,000 (many of them very young children)are estimated to have died in the concentration camps. Therewere also about 20,000 black and ‘coloured’ Africanswho died in concentration camps, though this was little reportedat the time. So it was a major episode in British military history.The impact on British opinion of the relief of Ladysmith andespecially of Mafeking in 1900 was quite overwhelming. In afrenzy of ‘jingo’ celebration, the verb ‘mafficking’entered the language. In these circumstances, the consequencesof the Boer War on the media and its representation of war wereinevitably massive.     

Fracture-fill calcite as a record of microbial methanogenesis and fluid migration: a case study from the Devonian Antrim Shale, Michigan Basin

The Devonian Antrim Shale is an organic‐rich, naturally fractured black shale in the Michigan Basin that serves as both a source and reservoir for natural gas. A well‐developed network of major, through‐going vertical fractures controls reservoir‐scale permeability in the Antrim Shale. Many fractures are open, but some are partially sealed by calcite cements that retain isotopic evidence of widespread microbial methanogenesis. Fracture filling calcite displays an unusually broad spectrum of δ¹³C values (+34 to ?41‰ PDB), suggesting that both aerobic and anaerobic bacterial processes were active in the reservoir. Calcites with high δ¹³C values (>+15‰) record cementation of fractures from dissolved inorganic carbon (DIC) generated during bacterial methanogenesis. Calcites with low δ¹³C values (13C values between ?10 and ?30‰ can be attributed to variable organic matter oxidation pathways, methane oxidation, and carbonate rock buffering. Identification of ¹³C‐rich calcite provides unambiguous evidence of biogenic methane generation and may be used to identify gas deposits in other sedimentary basins. It is likely that repeated glacial advances and retreats exposed the Antrim Shale at the basin margin, enhanced meteoric recharge into the shallow part of the fractured reservoir, and initiated multiple episodes of bacterial methanogenesis and methanotrophic activity that were recorded in fracture‐fill cements. The δ¹⁸O values in both formation waters and calcite cements increase with depth in the basin (?12 to ?4‰ SMOW, and +21 to +27‰ PDB, respectively). Most fracture‐fill cements from outcrop samples have δ¹³C values between ?41 and ?15‰ PDB. In contrast, most cement in cores have δ¹³C values between +15 and +34‰ PDB. Radiocarbon and ²³⁰Th dating of fracture‐fill calcite indicates that the calcite formed between 33 and 390 ka, well within the Pleistocene Epoch.