§ 31. Mr. DU CROSasked, in reference to envelopes of Army airships, which from time to time become unfit for service through usage, whether it is intended to renew the envelopes or whether it will be necessary to discard the airships?
§ Colonel SEELYEnvelopes have been renewed when the airship is in other respects satisfactory and efficient. Each case has to be considered on its merits.