Popular Science (Times Mirror Magazine Inc., New York USA)
Ending Volume & Year: 230, 1987
Missing Volume: 203(1-2);205;206;207(1-2);211(1);214(3,5-6);215(2-5);219(6);220(4-6);221-222;223(4);224(3,5-6);225(1,5);226(2,4);227(1,5-6);229;230(1,4-6);231(2)
Starting Volume & Year: 203, 1973