| 1 | Los científicosBC DER 26 | Cover | 1 | | Napoleão Figueiredo | Donald Duck, Emil Eagle, Goofy, Gyro Gearloose, José Carioca, Ludwig Von Drake and 2 more |
| 2 | Los científicos | Illustration | 1 | | | Ludwig Von Drake |
| 3 | SupercoloranteW WDC 201-01 | Story | 10 | Carl Barks | Carl Barks | Cornelius Coot, Daisy Duck, Donald Duck, Gyro Gearloose, Huey, Dewey and Louie, Gyro's Helper |
| 4 | Insectos gigantesS 66038 | Story | 12 | | Jack Bradbury, Ellis Eringer | Goofy, Mickey Mouse, Peg-Leg Pete, Professor Bugsby |
| 5 | Ciencia a puntapiésS 63083 | Story | 8 | | Paul Murry | Goofy, Ludwig Von Drake, Mickey Mouse |
| 6 | Centenario "movidito"S 71131 | Story | 9 | Carl Fallberg | Tony Strobl, Mike Royer | Cornelius Coot, Emil Eagle, Gyro Gearloose, Gyro's Helper |
| 7 | Ciencia contra magia negraI TL 352-B | Story | 17 | Carlo Chendi | Luciano Bottaro | Donald Duck, Gyro Gearloose, Witch Hazel, Gyro's Helper, Uncle Scrooge |
| 8 | Negocios espumososW LVD 4-03 | Story | 6 | | Tony Strobl, John Liggera | Huey, Dewey and Louie, Ludwig Von Drake, Uncle Scrooge |
| 9 | El loro del científicoI TL 347-B | Story | 16 | Abramo Barosso, Giampaolo Barosso | Romano Scarpa, Rodolfo Cimino | Detective Casey, Clarabelle Cow, Goofy, Mickey Mouse, Chief O'Hara, The Phantom Blot |
| 10 | Prácticas elementalesS 66178 | Story | 8 | | Jack Bradbury, Ellis Eringer | Donald Duck, Huey, Dewey and Louie, Ludwig Von Drake |
| 11 | La bola que no existíaS 65067 | Story | 8 | | Fred Abranz | Goofy, Mickey Mouse |
| 12 | Genios indeseablesW LVD 4-04 | Story | 5 | | Tony Strobl, John Liggera | Gyro Gearloose, Huey, Dewey and Louie, Ludwig Von Drake |
| 13 | El sopla-vientoW MM 37-02 | Story | 9 | Don Christensen | Jack Bradbury | Minnie Mouse, Mickey Mouse, Pluto |
| 14 | Peligro públicoS 65010 | Story | 8 | Vic Lockman | Tony Strobl, Steve Steere | Daisy Duck, Donald Duck, Gyro Gearloose |
| 15 | El lanza-rayosW MM 34-02 | Story | 14 | | Tony Strobl, John Liggera | A differently drawn Shyster, Minnie Mouse, Mickey Mouse, Chief O'Hara, Peg-Leg Pete |
| 16 | Las superapariencias engañanW SG 11-01 | Story | 14 | | Tony Strobl, Steve Steere | Clarabelle Cow, Goofy, Plant scientist from W SG 11-01, Super Goof |
| 17 | La caverna de los vientosW OS 1095-02 | Story | 13 | Carl Barks | Carl Barks | The Beagle Boys, Gyro Gearloose, Gyro's Helper, Uncle Scrooge |
Colombia, in Colombian Spanish