George F. Garcelon, Research Director, inspects a portable temperature monitoring and control device which regulates reaction taking place under a ventilation hood.
North Carolina State University. College of Textiles
Black-and-white print (photograph)
Rights status not known. Reproduction and use of this material may be restricted. For general information see the NCSU Libraries Special Collections Research Center website (http://www.lib.ncsu.edu/specialcollections/research).