Detective Comics comic books issue 300

Cover art by Sheldon Moldoff. "The Bizarre Polka-Dot Man" starring Batman and Robin, pencils by Sheldon Moldoff, inks by Charles Paris; Batman and Robin confront a new costumed criminal in Gotham under the alias of Mr. Polka Dot who has started a crime wave based on spots and dots; To conceal his identity, Polka Dot wore a bizarre costume covered in spots, the point of which soon became apparent - once removed from the costume, the spots could be used for a variety of purposes, creating deadly weapons and a bizarre escape vehicles; Perhaps surprisingly, he succeeded in capturing Robin, but Batman was nonetheless able to save his crime fighting partner and bring Krill's crime spree to an end. . Lefty Looie humor page by Henry Boltinoff. Let Science Serve You! public service announcement. "The J'onn J'onzz Museum" starring John Jones Manhunter from Mars, art by Joe Certa; Criminals use newsreel footage of J'Onzz to determine his weakness. Danger: Police at Work article. "The Mystery Of The Undersea Safari," art by Nick Cardy (Aquaman series ends); Aquaman and Aqualad help Professor Peters stop some crooks from stealing a pirate treasure. Statement of ownership--average paid circulation, 325,000. 32 pgs., full color. Cover price $0.12.