
Figure 7.--(a) Bottle of pressure-sensitive paint; (b) B2M International 
Rectifier selenium sun cell; (c) A 15-M selenium photovoltaic cell; (d) 1.4-V. 
button mercury battery; (e) pressure micro-ducer mounted in series circuit with 
rheostat, battery, and microammeter. 
a eo 
oe: 

Se eee eee ee eee eee ee ee ee ee cae a a a Seca ec acs enue cee as cent aur uu ean dom Salis Se 
INCHES ’ 
Figure 8.--Thermistor configurations. (a) Disk thermistor for surface temper- 
ature measurements; (b) hypodermic-type thermistor, used in corn silk channel by 
the author; (c) flexible probe; (d) bead probe. 
Saleh 
