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number of woodrat ( Neotoma ) nests and armadillo burrows. Roughly 15 m 

 south of the house is a large equipment shed, behind which (to the 

 west) is the kennel in which are kept the family's ten hunting dogs 

 (Fig. 2-10). Between the house and the kennel are a large live oak 

 tree and a wood pile (Fig. 2-11). Approximately 80 m west of the 

 house are the hog pens (Fig. 2-12). Approximately 100 m behind (west 

 of) the house is a dry creek bed lined with mesquite trees, and beyond 

 that, a grove of live oak trees. The closest weather station is in 

 Hondo, 20 km to the east. The climate at this station is 

 representative of Medina County, with hot humid summers and pleasantly 

 mild, dry winters (US Department of Commerce, 1983b). Average annual 

 rainfall is 71.2 cm with heaviest rainfall received during April-June 

 and September-October. Mean length of the warm season is 263 days. 

 Mean dates of last occurrence of freezing temperatures in spring, and 

 first occurence in the fall are March 6 and Nov. 24, respectively. 

 Humidity at noon central standard time averages 58% in January, 56% in 

 April, 48% in July, and 55% in October. Average daily maximum and 

 minimum temperatures for September, 1983, were 32°C and 26°C, 

 respectively, with 13.0 cm precipitation. Temperatures for the year 

 ranged between 43°C and -16°C with ten-year average daily maxima and 

 minima of 27°C and 13°C (US Department of Commerce, 1983b). 



Site F. Romer Ranch, Devine, Medina County, Texas (19-30 

 September, 1983; Fig. 2-13). This is the home of the paternal 

 grandparents of Patient B. Approximately 10 km south east of Devine, 

 it is very similar in general features to Site E in D'Hanis. 



Site G . Romer Residence, northwest San Antonio, Bexar County, 

 Texas (22 September, 1983; Fig. 2-14). This is the home of Patient B 



