EXHIBIT ITEM 10 (a)(2)
RULE 30a-2(a)
CERTIFICATIONS



I, Brian T.
Zino, certify that: 



	1.	 	I
have reviewed this report on Form N-CSR of Seligman New Technologies Fund,  Inc.; 







	2.	 	Based
on my knowledge, this report does not contain any untrue statement of a  material fact or
omit to state a material fact necessary to make the statements  made, in light of the
circumstances under which such statements were made, not  misleading with respect to the
period covered by this report; 







	3.	 	Based
on my knowledge, the financial statements, and other financial information  included in
this report, fairly present in all material respects the financial  condition, results of
operations, changes in net assets, and cash flows (if the  financial statements are
required to include a statement of cash flows) of the  registrant as of, and for, the
periods presented in this report; 







	4.	 	The
registrant’s other certifying officers and I are responsible for  establishing and
maintaining disclosure controls and procedures (as defined in  Rule 30a-3(c) under the
Investment Company Act of 1940) for the registrant and  have: 







	a)	 	Designed
such disclosure controls and procedures, or caused such disclosure  controls and
procedures to be designed under our supervision, to ensure that  material information
relating to the registrant, including its consolidated  subsidiaries, is made known to us
by others within those entities, particularly  during the period in which this report is
being prepared; 







	b)	 	Evaluated
the effectiveness of the registrant’s disclosure controls and  procedures and
presented in this report our conclusions about the effectiveness  of the disclosure
controls and procedures, as of a date within 90 days prior to  the filing date of this
report based on such evaluation; and 







	c)	 	Disclosed
in this report any change in the registrant’s internal control  over financial
reporting that occurred during the registrant’s most recent  fiscal half-year (the
registrant’s second fiscal half-year in the case of  an annual report) that has
materially affected, or is reasonably likely to  materially affect, the registrant’s
internal control over financial  reporting; and 







	5.	 	The
registrant’s other certifying officers and I have disclosed, to the  registrant’s
auditors and the audit committee of the registrant’s  board of directors (or persons
performing the equivalent functions): 







	a)	 	 All
significant deficiencies and material weaknesses in the design or operation  of internal
controls over financial reporting which are reasonably likely to  adversely affect the
registrant’s ability to record, process, summarize,  and report financial
information; and 







	b)	 	Any
fraud, whether or not material, that involves management or other employees  who have a
significant role in the registrant’s internal control over  financial reporting. 







	Date: March
1, 2004	/S/ BRIAN T. ZINO

Brian T. Zino
Principal Executive Officer



















EXHIBIT ITEM 10 (a)(2)
RULE 30a-2(a)
CERTIFICATIONS



I, Lawrence P.
Vogel, certify that: 



	1.	 	I
have reviewed this report on Form N-CSR of Seligman New Technologies Fund,  Inc.; 







	2.	 	Based
on my knowledge, this report does not contain any untrue statement of a  material fact or
omit to state a material fact necessary to make the statements  made, in light of the
circumstances under which such statements were made, not  misleading with respect to the
period covered by this report; 







	3.	 	Based
on my knowledge, the financial statements, and other financial information  included in
this report, fairly present in all material respects the financial  condition, results of
operations, changes in net assets, and cash flows (if the  financial statements are
required to include a statement of cash flows) of the  registrant as of, and for, the
periods presented in this report; 







	4.	 	The
registrant’s other certifying officers and I are responsible for  establishing and
maintaining disclosure controls and procedures (as defined in  Rule 30a-3(c) under the
Investment Company Act of 1940) for the registrant and  have: 







	(a) 	 	Designed
such disclosure controls and procedures, or caused such disclosure  controls and
procedures to be designed under our supervision, to ensure that  material information
relating to the registrant, including its consolidated  subsidiaries, is made known to us
by others within those entities, particularly  during the period in which this report is
being prepared; 







	(b) 	 	Evaluated
the effectiveness of the registrant’s disclosure controls and  procedures and
presented in this report our conclusions about the effectiveness  of the disclosure
controls and procedures, as of a date within 90 days prior to  the filing date of this
report based on such evaluation; and 







	(c) 	 	Disclosed
in this report any change in the registrant’s internal control  over financial
reporting that occurred during the registrant’s most recent  fiscal half-year (the
registrant’s second fiscal half-year in the case of  an annual report) that has
materially affected, or is reasonably likely to  materially affect, the registrant’s
internal control over financial  reporting; and 







	5.	 	The
registrant’s other certifying officers and I have disclosed, to the  registrant’s
auditors and the audit committee of the registrant’s  board of directors (or persons
performing the equivalent functions): 







	(a) 	 	All
significant deficiencies and material weaknesses in the design or operation  of internal
controls over financial reporting which are reasonably likely to  adversely affect the
registrant’s ability to record, process, summarize,  and report financial
information; and 







	(b) 	 	Any
fraud, whether or not material, that involves management or other employees  who have a
significant role in the registrant’s internal control over  financial reporting. 







	Date: March
1, 2004	/s/ LAWRENCE P. VOGEL

Lawrence P. Vogel
Principal Financial Officer