"Astounding Stories of Super-Science, May, 1930" is a collection of speculative fiction tales curated by various authors, likely assembled during the early 20th century. This anthology presents stories filled with adventure, science fiction concepts, and fantastic elements that were characteristic of the pulp magazines of that time. The collection includes narratives about journeys to the ocean's depths, confrontations with undersea civilizations, and other intriguing tales that explore the bounds of imagination and science. The opening of the anthology introduces "Into the Ocean's Depths" by Sewell Peaslee Wright, where the main character, Taylor, receives a telegram from his friend Mercer, hinting at an adventurous journey back to the underwater world they previously visited. Taylor, intrigued and compelled by Mercer's message, embarks on a trip to Florida, setting the stage for a reunion with a creature from the ocean depths. The writing vividly captures the excitement of scientific exploration and discovery as Mercer prepares to revisit the underwater civilization, promising thrilling encounters and extraordinary adventures beneath the sea. (This is an automatically generated summary.)