Flinders Petrie, Race Theory and Biometrics
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Challis, D 2016 Skull Triangles: Flinders Petrie, Race Theory and Biometrics. Bulletin of Bofulletin the History of Archaeology, 26(1): 5, pp. 1–8, DOI: http://dx.doi.org/10.5334/bha-556 the History of Archaeology RESEARCH PAPER Skull Triangles: Flinders Petrie, Race Theory and Biometrics Debbie Challis* In 1902 the Egyptian archaeologist William Matthew Flinders Petrie published a graph of triangles indi- cating skull size, shape and ‘racial ability’. In the same year a paper on Naqada crania that had been excavated by Petrie’s team in 1894–5 was published in the anthropometric journal Biometrika, which played an important part in the methodology of cranial measuring in biometrics and helped establish Karl Pearson’s biometric laboratory at University College London. Cicely D. Fawcett’s and Alice Lee’s paper on the variation and correlation of the human skull used the Naqada crania to argue for a controlled system of measurement of skull size and shape to establish homogeneous racial groups, patterns of migration and evolutionary development. Their work was more cautious in tone and judgement than Petrie’s pro- nouncements on the racial origins of the early Egyptians but both the graph and the paper illustrated shared ideas about skull size, shape, statistical analysis and the ability and need to define ‘race’. This paper explores how Petrie shared his archaeological work with a broad number of people and disciplines, including statistics and biometrics, and the context for measuring and analysing skulls at the turn of the twentieth century. The archaeologist William Matthew Flinders Petrie’s The graph vividly illustrates Petrie’s ideas about biologi- belief in biological determinism and racial hierarchy was cal racial difference in a hierarchy that matched brain size informed by earlier ideas and current developments in and skull shape to assumptions about intelligence. The anthropometrics and eugenics. The combination of inter- emphasis on skulls as the main indicators of this sup- national agreements on measurements and collection of posed biological difference was typical of Petrie’s ideas data from skulls alongside Galton’s sophisticated statisti- cal analysis led to a greater importance placed on anthro- pometric measurements and the potential of this to plot human evolutionary development. In 1902 Petrie pub- lished a graph in Man (a journal published by the Anthro- pological Institute of Great Britain and Ireland) showing the cranial sizes of various groups of people from skulls in the collection of the Royal College of Surgeons, London. This paper ‘On the Use of Diagrams’ was an exercise in the applied use of three-dimensional graphs through the mapping of triangles of three indices of skull sizes on a diagram of climate and intelligence of races (Fig. 1). The triangular measurements were taken from the dimensions of skulls – capacity, width and height – and these were also illustrated in the paper (Fig. 2). This 3-D diagram visualises the statistics of skull measuring as well as rac- ist assumptions around skulls, brain size and intellectual ability. Petrie’s diagram utilised Lamarkian ideas about climate and environment affecting biological difference in human beings as well as reflecting established racially determinist views of civilization and intelligence. Figure 1: Petrie (1902), ‘Diagram of Climate and Intelligence * Petrie Museum of Egyptian Archaeology, UCL, GB of Races, each race marked by skull triangles (male only) in d.challis@ucl.ac.uk race triangle oval of nasal and alveolar indices.’ Art. 5, page 2 of 8 Challis: Skull Triangles reinterpreted Camper’s angle it was used to determine cranium size for humans and animals and considered to reflect ‘the development of internal faculties under self- control’ (Meijer 1999: 175). Franz Joseph Gall and his student Johann Gaspar Spurzheim became famous for applying the physiogno- mic principles of Lavater to reading inherent moral traits of the heads of individuals. The practice of phrenology had a sensationally successful and popular period in Figure 2: Petrie (1902), ‘Triangle of three dimensions of the 1810s to 1830s and George Coombe and his brother skulls comprising three indices, three section areas and Andrew, both physicians, established a leading phreno- capacity, oval showing nasal index (width) and alveolar logical society in Edinburgh (Kemp and Wallace 2000: index (height).’ 111). As a result of the physiognomic principles of phre- nology, casts of heads of notable individuals and death masks of criminals were collected. Although, phrenology around race but far from unique to him. However, what was scientifically derided by the mid nineteenth-century, was unique was Petrie’s relationship with the polymath collecting casts, skulls and making head measurements scientist Francis Galton, statistician Karl Pearson and his of people was not. The brain capacity of the skull and contribution to the establishment of biometrics as a tool features that determined facial characteristics were still of scientific analysis at University College London (UCL). considered essential for defining human difference and This paper considers Petrie’s contribution to the forma- so collections of phrenological interest were deemed tion of the biometrics laboratory at UCL through his useful to anthropometric science. For example Thomas collection of skulls from Naqada for Pearson at UCL in Henry Huxley advocated the utility of anthropomet- 1894–95 and the analysis of those crania, which was pub- rics while dismissing the phenological use of the skull lished the same year as Petrie’s three-dimensional graph in a paper read to the Ethnological Society in 1870, in of skull sizes, by Alice Lee and Cicely Fawcett in the new which he identified five main races: Austroloid, Negroid, journal Biometrika. Both publications offer a complemen- Xanthochroi (fair whites of Europe), Melanochroi (dark tary yet different interpretation of skull size and shape; whites of Europe, North Africa, Asia Minor and Brahmin the emphasis in both was on the utility of statistics and Indians) and Mongloid (peoples of Asia, Polynesia and visual forms of analysis rather than racial theory. Yet both the Americas). Huxley’s classification system was based offer an insight to attitudes to the construction of race on physical characteristics that included skull size as one and race theory and its impact on the practice of archaeol- of a number of anthropometric measurements (Lorimer ogy at the turn of the twentieth century. 1988: 412–13). Huxley, though making value-laden judge- ments, did not place different racial groups in a hierarchy Skull Collecting: Context as Petrie did, which is illustrative of Petrie’s ideas about The importance of skulls for showing facial character- race and acceptance of racial determinism more gener- istics and head shape as well as brain capacity began to ally by the 1900s. be stressed in the last quarter of the eighteenth century. Skull measuring was given greater scientific importance Johann Friedrich Blumenbach proposed five different by biologists such as Professor William F. Flower (Director types of humans in 1776 in On the Genesis of the Native of the Natural History Departments of the British Museum Varieties of Humans: Caucasian, Mongol, Ethiopian, Amer- in South Kensington) in stressing ‘the role of geographi- ican and Malayan. Blumenbach defined Caucasian as cal isolation in the development of particular racial traits, people west of the Caucasus mountains and based them including “intellectual and moral qualities”’ (Lorimer on what he considered to be the most beautiful skull 1988: 419). Flower, though questioning the value of shape – the Circassian Georgian (Meijer 1999: 169). At the craniology without reference to other anthropometric same time, the Swiss clergyman and poet Johann Casper measurements, helped define craniological practice in Lavater ‘rediscovered’ physiognomy from antiquity and Britain, particularly through the development of measur- created an anthology of facial types in silhouette that pur- ing equipment, such as callipers and a stress on consistent ported to show inward behaviours and emotions (Swain practice. The anthropologist Paul Broca published a guide 2007). Lavater’s anthology of facial types created a ‘nexus for craniologists for measuring skulls in 1875, for which of racial and visual typology’ and reused the ‘facial angle’ he measured 1,500 skulls and gave guidelines on what measured by the Dutch physician and anatomist Petrus measurements to take and how to describe them (Fabian Camper (Bindman 2002: 123). Camper’s angle showed the 2010: 191). Physical differences in skulls were given addi- profiles of the forehead, brow, nose, mouth and chin of tional value in terms of defining moral, social and racial different faces, notably comparing the face of the ancient characteristics. Francis Galton’s composite photographs Greek sculpture Apollo Belvedere to that of a Black African of the faces of criminals were an attempt, like Broca with man. Camper’s aim was to stress the similarity between his skull measurements, to obtain a graphic representa- both as he was a monogenecist (all races were part of one tion of variation in the face. These physical characteris- human species). By the time the anatomist Georges Cuvier tics were then mapped to behaviour and ‘evolutionary Challis: Skull Triangles Art. 5, page 3 of 8 development of different population groups’ (Kwint and as he ‘sincerely believed that statistics could be used to Windgate