ANTHROPOMETRY 49 



and may be necessary, in addition to measurements and observations, 

 to take photographs also, and to make facial casts. Directions for 

 these will be given later. In this place it may merely be stated that 

 both photography and casting may well and with advantage be at- 

 tended to by the observer himself. Nothing is more gratifying and, 

 it may well be added, trouble saving, than one's own good work in these 

 directions. The photographing should be done preferably, if condi- 

 tions permit, immediately after the measurements and observations 

 on the subject are concluded, for he may not be available at another 

 time. It may even be necessary to take the cast at this time also for 

 the subject has occasionally come from a long distance; but for those 

 who may readily be reached the casting may be postponed until after 

 all the anthropometric work is concluded. 



VIII 



Field Anthropometry 



The preceding introductory considerations may be rounded up by a 

 few remarks as to anthropometry in the field, where conditions will 

 differ radically from those in the laboratory. 



Supplies; Transportation. — In general it is best to secure all the 

 supplies for the scientific work of an expedition before departure, and 

 to secure only the best and freshest materials. This applies par- 

 ticularly to plaster-of-paris for facial casts, and to photographic plates 

 and films. The number and variety of articles to be carried along on 

 an expedition cannot be given in detail. It depends largely on the 

 regions to be visited, the prospective length of the expedition, and the 

 experience as well as the wants of the observer. The best rule is to 

 take everything needed, with nothing superfluous. 



The cameras and instruments should be well tested before the trip. 

 The paster-of-paris under ordinary conditions is carried in large tin 

 cans or zinc lined boxes, and the photographic plates and films in their 

 ordinary receptacles. For the tropics all such material should be 

 carried in special light metal boxes, and in the case of the plaster every 

 precaution must be taken against its becoming spoiled by moisture. 

 The photographic necessities should be such as to permit under any 

 circumstances the loading of plates and some test developments of 

 exposures. A complete development of the plates and films and 

 printing in the field are not advisable, unless the work is carried on in 

 connection with some well established archeological or other exploring 

 station. 

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