SCHEDULE 13D TGC INDUSTRIES, INC COMMON 872417118 EDWARD L. FLYNN 75-11 MYRTLE AVENUE GLENDALE NY 11385 718 386 5800 11/25/97 cusip no. 872417118 1 EDWARD L, FLYNN ###-##-#### 2 3 4 BROKERAGE ACCOUNT PF 5 6 USA 7 288400 8 9 SAME AS 7 10 11 SAME AS 7 12 13 4.56% OF COMMON plus 6.43% C PFD 14 IN