Edgar Rice Burroughs I Am a Barbarian 35805 SF Edgar Rice Burroughs I Am a Barbarian (1978) 35840 SF Andre Norton Ice Crown (1970) 35843 SF Andre Norton Ice Crown 35844 SF Andre Norton Ice Crown (1993) 35854 SF Kim Stanley Robinson Icehenge (1984) 36300 NA Ron Goulart If Dying Was All (1971) 37062 SF A. Bertram Chandler The Inheritors / The Gateway to Never (June 1972) 37063 SF A. Bertram Chandler The Inheritors / The Gateway to Never 37064 SF A. Bertram Chandler The Inheritors / The Gateway to Never 37088 SF Walt Richmond The Probability Corner 37090 SF Mark Adlard Interface (1971) 37100 SF Arthur K. Barnes Interplanetary Hunter (1972) 37106 SF Brian M. Stableford In the Kingdom of the Beasts 37108 SF A. Bertram Chandler Into the Alternate Universe / Contraband from Otherspace 37109 SF A. Bertram Chandler Into the Alternate Universe / Contraband from Otherspace 37130 SF Robert Silverberg Invaders from Earth / To Worlds Beyond 37217 SF Colin Kapp The Ion War (1978) 37250 SF Marion Zimmer Bradley The Brass Dragon / John Rackham Ipomoea (April 1969) 37291 SF Andre Norton Iron Cage (1974) 37292 SF Andre Norton Iron Cage (1981) 37365 SF Robert E. Howard The Iron Man / The Adventures of Dennis Dorgan 37381 NA P. Agan Is That Who I Think It Is? Volume 1 (1975) 37382 NA P. Agan Is That Who I Think It Is? Volume 3 (1976) 37421 NA H. G. Wells The Island of Dr. Moreau (1977) 37425 SF Avram Davidson An Island Under the Earth (1969) 37465 SF Roger Zelazny Isle of the Dead (1969) 37466 SF Roger Zelazny Isle of the Dead (1974) 37468 SF Roger Zelazny Isle of the Dead (1976) 37470 SF Roger Zelazny Isle of the Dead (1982) 37598 NA Gil Brewer The Devil in Davos: It Takes a Thief#1 (1969) 37599 NA Gil Brewer Mediterranean Caper: It Takes a Thief#2 (1969) 37600 NA Gil Brewer Appointment in Cairo: It Takes a Thief#3 (1970) 37797 SF Esther Friesner Here Be Demons 38120 SF John Brunner The Jagged Orbit (1969) 38122 SF John Brunner The Jagged Orbit 38287 SF Jerry Pournelle The Janissaries 38500 WE Kyle Hollingshead Ransome's Move / L. L. Foreman Jemez Brand (1971) 38536 SF E. C. Tubb The Jester at Scar: Dumarest of Terra#5 (1982) 38570 SF C. L. Moore Jirel of Joiry 40590 NA Ron Goulart Too Sweet to