Plane Solid Geometry by Hart Feldman Daniel: First Edition (2 results)

Hardcover. Condition: Good. No Jacket. First Edition. First printing (no additional printings listed). Olive green cloth with blindstamped lettering on the front board and gilt lettering on the spine. 488 pp including index, plus advertising. This copy has a faint musty smell. The spine is slanted. Previous owner's name and address, dated 1913, is on the front free endpaper. Otherwise unmarked and in a tight binding. Size: 12mo - over 6¾" - 7¾" tall. …

Hardcover. Condition: Very Good. No Jacket. 1st Edition. Hart, C. A.; Feldman, Daniel D. Plane and Solid Geometry. New York; Cincinnati; Chicago: American Book Company, 1911 (copyright), later printing. Hardcover. A classic early 20th-century American high school geometry text, developed within the New York City public school system and supported by Cornell mathematicians J. H. Tanner and Virgil Snyder. The work presents a structured Euclidean curriculum covering plane and solid geometry, including proofs, propositions, and applied exercises, reflecting the rigor and standardization of mathematics education in the Progressive Era. This copy is a later printing of the 1911/1912 copyright edition, published by American Book Company, a dominant educational publisher of the period. The title page and copyright page confirm the early issue, with no later reset or modernized text - typical of long-running classroom editions. Of particular note are two pieces of laid-in handwritten study notes, likely contemporary to the book's use, featuring geometric proofs and diagrams in ink on period paper. These ephemeral inserts provide a compelling glimpse into the lived academic use of the volume. Additional marginal annotations and calculations appear sporadically throughout the text, reinforcing its authentic student ownership and use. Condition: Very Good. Original olive-green cloth with black stamped titling. Binding is firm, square, and intact. Boards show moderate rubbing, scattered discoloration, and a few ink marks, including a small doodle on the rear board; corners and spine ends show light wear. Interior pages are generally bright and clean, with occasional foxing and scattered pencil/ink annotations. A neat ownership inscription reads 'Clement Brooks, St. John's College' on the front endpaper. The two laid-in sheets show edge wear and toning but remain fully legible and well-preserved. C. A. Hart was a mathematics instructor in New York City, and Daniel D. Feldman served as a high school principal; together they contributed to widely adopted instructional texts during a period when American secondary education was rapidly expanding and formalizing. Their collaboration, with editorial input from Cornell University mathematicians, reflects the bridging of secondary and higher education standards in early 20th-century mathematics pedagogy.…