would be pleased to refer you to two sources of supply: one. 

 Autoclave Engineers, 2930 West ZZnd St., Erie, Pennsylvania; 

 the next is the American Instrument Company, Inc., 8030 Georgia 

 Avenue, Silver Spring, Maryland. Either company is well able 

 to supply you with almost any size vessel which you wish and work 

 to any pressure within reason up to 30, 000 p. s. i. or even 100, 000 

 p.s.i. The latter company has tended to specialize in "super pres- 

 sure systems" working in the 100, 000 p. s. i. range. As far as 

 price is concerned, the smaller sizes probably can be obtained for 

 less than $100, though the price goes up relatively rapidly to one 

 3-1/2 in. (inside diameter) by 13 in. deep, capable of working to 

 30, 000 p. s. i. , will cost approximately $800. 



MR. MORRIS WEISS (Barnes Engineering Company): Mr. Schule 

 talked about infrared scanners for horizontal temperature nnea- 

 surement and for ice survey programs. Could we have more speci- 

 fic information here? 



MR. J. J. SCHULE, JR. (HO): The obtaining of an accurate hori- 

 zontal picture of the sea surface temperature pattern has proven 

 to be of great importance in the ASWEPS program. With the Air- 

 borne Radiation Thermometer we now can measure sea surface 

 temperature quite accurately from an aircraft, but only along a 

 line directly beneath the aircraft track. The object of making ex- 

 periments with an infrared scanner would be to broaden the scope 

 of these measurements by using the scanning device to provide 

 a horizontal presentation of the sea surface temperature gradient, 

 while establishing an absolute temperature reference with the Air- 

 borne Radiation Thermometer. In this way a more accurate de- 

 lineation of small scale temperature features can be obtained; 

 these featvires have proven to be of great interest to us. 



It also seems probably that infrared scanning techniques can 

 be used effectively in Arctic ice reconnaissance. Most such re- 

 connaissance is usually carried out visually; the data, therefore, 

 not only contain a considerable amount of subjectivity, but recon- 

 naissance is precluded during the winter months. The nature of 

 the temperature structure in Arctic sea ice and adjacent open 

 water areas makes it appear feasible to use infrared techniques 

 to obtain objective data on a year-round basis. This, of course, 

 would not solve the problem of providing an all-weather capability, 

 but it woxild be a step in the right direction. 



262 



