<SEC-DOCUMENT>0000030167-15-000017-index.html : 20151016
<SEC-HEADER>0000030167-15-000017.hdr.sgml : 20151016
<ACCEPTANCE-DATETIME>20151016150719
ACCESSION NUMBER:		0000030167-15-000017
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20151016
DATE AS OF CHANGE:		20151016
EFFECTIVENESS DATE:		20151016

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS THIRD CENTURY FUND INC
		CENTRAL INDEX KEY:			0000030167
		IRS NUMBER:				132691318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-40341
		FILM NUMBER:		151161946

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226883

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 8TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS PREMIER THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	20020517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	19920703

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS THIRD CENTURY FUND INC
		CENTRAL INDEX KEY:			0000030167
		IRS NUMBER:				132691318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-02192
		FILM NUMBER:		151161947

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226883

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 8TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS PREMIER THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	20020517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000030167
<SERIES-ID>S000000095
<SERIES-NAME>DREYFUS THIRD CENTURY FUND INC
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000149
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>DTCAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000151
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>DTCCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000152
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>DRTCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000154
<CLASS-CONTRACT-NAME>Class Z
<CLASS-CONTRACT-TICKER-SYMBOL>DRTHX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>lp1035.htm
<DESCRIPTION>POST EFFECTIVE AMENDMENT NO. 73
<TEXT>
Document 1 - file: lp1035.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>2 <FILENAME>ck0000030167-20150925.xsd <DESCRIPTION>TAXONOMY <TEXT> Document 2 - file: ck0000030167-20150925.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.INS <SEQUENCE>3 <FILENAME>ck0000030167-20150925.xml <DESCRIPTION>INSTANCE DOCUMENT <TEXT> Document 3 - file: ck0000030167-20150925.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.CAL <SEQUENCE>4 <FILENAME>ck0000030167-20150925_cal.xml <DESCRIPTION>CALCULATION LINKBASE <TEXT> Document 4 - file: ck0000030167-20150925_cal.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>5 <FILENAME>ck0000030167-20150925_pre.xml <DESCRIPTION>PRESENTATION LINKBASE <TEXT> Document 5 - file: ck0000030167-20150925_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.DEF <SEQUENCE>6 <FILENAME>ck0000030167-20150925_def.xml <DESCRIPTION>DEFINITION LINKBASE <TEXT> Document 6 - file: ck0000030167-20150925_def.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>7 <FILENAME>ck0000030167-20150925_lab.xml <DESCRIPTION>LABEL LINKBASE <TEXT> Document 7 - file: ck0000030167-20150925_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>8 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 8 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>R9.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: R9.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>R2.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: R2.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>BarChart1.png <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 11 - file: BarChart1.png
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>12 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>14 <FILENAME>0000030167-15-000017-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: 0000030167-15-000017-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>15 <FILENAME>R10.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: R10.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>16 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: FilingSummary.xml
</DOCUMENT> </SEC-DOCUMENT>