Giant-Size X-Men #1 (July 1975):
“The Female of the Species!”
by Linda Fite, Werner Roth, Sam Grainger

Giant-Size X-Men #1

Title: “The Female of the Species!”

Feature: The Origins of the Uncanny X-Men; Jean Grey

Medium: comic

Cover date: July 1975

Publisher: Marvel
Written by: Linda Fite
Art by: Werner Roth, Sam Grainger

Number of Pages: 5

6 characters in this story:

(Click links for info about character
and his/her religious practice, affiliation, etc.)
Pub. #
Phoenix Marvel Girl (Jean Grey)
(lead character)
CBR Scale: I Episcopalian
Metro College; The Twelve...  Marvel 1,905
police police supporting character group real/historical person
  [generic listing] DC 28
crooks crooks villain group
  [criminal] DC 1
Professor X Professor X (Charles Xavier)
hero scientist
CBR Scale: S religious
Brotherhood of Mutants; Genoshan Excalibur...  Marvel 4,999
Isaac Newton Isaac Newton
scientist real/historical person
CBR Scale: M Anglican (non-Trinitarian)
[scientist] Marvel 99
Heloise Bowles Heloise Bowles
real/historical person
  [wrote "Hints from Heloise" household advice column] The Honolulu Advertiser 1

This comic was reprinted from pages 1, 3-5 of: X-Men (vol. 1) #57 (June 1969): "The Female of the Species!". (Only a portion of the original comic was reprinted in this publication.)

In this reprinting, page 2 of the original 5-page story has been removed.

Notes from original source:
Jean Grey (Marvel Girl) provides a detailed explanation of her powers, demonstrating them to readers and an audience.