An indispensable ledger of geology's published thought, assembled across borders. A landmark of organised knowledge. The International Catalogue of Scientific Literature: Seventh Annual Issue (H Geology) stands as a scientific literature collection and a practical geology reference book, an annual scientific index that brings order to an expanding earth sciences bibliography. Assembled to record the breadth of geological research topics reported across journals and institutional reports, it reads as both a map of enquiry and a tool for discovery. Its structured entries and subject-guided headings create a scientific cataloguing resource and an academic reference tool that researchers, librarians and engaged readers can use to locate citations and trace scholarly conversation. Designed for practical use, its indexical form allows readers to follow threads across time and territory, turning bibliographic citations into research leads. Acting as a scientific monographs index and a wider geology academic compendium, the volume reveals how ideas circulated among observatories, learned societies and university departments, and how regional studies connected to wider theoretical debate. Historically significant within early 20th century science, this seventh issue captures the moment when international science publications were being systematically recorded and made intelligible to a growing community of practitioners. For students of intellectual history it supplies context for how methods, priorities and terminologies emerged; for applied researchers it offers routes into forgotten or overlooked literature. Casual readers will find a textured chronicle of the discipline's concerns; classic-literature collectors will value the provenance and documentary authority it preserves. Useful on the shelves of a university library collection and compelling for anyone interested in the history of the earth sciences, it opens pathways into archival research and to the origins of bibliographic practice. Out of print for decades and now republished by Alpha Editions. Restored for today's and future generations. More than a reprint - a collector's item and a cultural treasure.