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New York, American Telephone and Telegraph Company, 1947. 8vo. In the original printed blue wrappers. In "The Bell System Technical Journal", Volume XXVI, Number 3, October, 1947. Entire issue offered. Light miscolouring to spine and very light wear to extremities. A fine fine and clean copy. Pp. 395-409. [Entire issue: Pp. 395-691.]. First appearance of Goodall's early paper on the on telephones working by pulse code modulation (PCM). PCM in the late 1940s and early 1950s used a cathode-ray coding tube with a plate electrode having encoding perforations.As in an oscilloscope, the beam was swept horizontally at the sample rate while the vertical deflection was controlled by the input analog signal, causing the beam to pass through higher or lower portions of the perforated plate. The plate collected or passed the beam, producing current variations in binary code, one bit at a time. Rather than natural binary, the grid of Goodall's later tube was perforated to produce a glitch-free Gray code, and produced all bits simultaneously by using a fan beam instead of a scanning beam.

Torino, Carlo Clausen, 1891-1892. Royal8vo. Uncut, unopened in the original blue printed wrappers. In "Atti della R. Accademia delle Scienze di Torino", Vol. XXVII, Disp. 1a, 1891-92. Small paper label pasted on to lower left part of front wrapper. A very fine and clean copy. Pp. 40-46. [Entire issue: 154 pp]. First appearance of Peano's paper on the conditions for expressing a function of several variables with Taylor’s formula.

N.Y., Ronald Press Comp., (1952). Royal8vo. Orig. full cloth with dustjacket. Jacket with some tears. XX,328 pp., textillustrations and plates.

Leipzig, Arthur Felix, 1884. Orig. hcalf. Spine gilt. A paperlabel pasted on upper part of spine. Stamps on title-page. XVI,1012 pp., plates and textillustrations. First edition.

K., 1968. 4to. Orig.1itograf.papirsbd.i kassette. Med originallitografier. Nr. 412 of 600 ekspl.

Hannover, Helwingschen, 1845. Contemp. clothbacked marbled boards. Stamp on title-page. 188,(2) pp., 1 folded table, 2 folded plans (Gibraltar).

Paris, Didot P. Fr. Le Jeune., 1799. Small8vo. In contemporary full sprinkled calf with richly gilt spine. Previous ownerøs name to front free end-paper. A fine copy. (4), 287 pp.

Reykjavik, 1914. Lille 8vo. Orig. helshirtbd. Portræt. 96 pp. Originaludgaven af forfatterens første digtsamling.

København, 2013. Orig. omslag. 1204 pp. 9. udgave.

Erfurt, Henningsches Buchh., 1804. Cont. boards. Rubbed along edges. Top of spine worn. (12),480,(4) pp.

Small8vo. Cont. full calf. Gilt back. Gilt titlelabel. Slightly rubbed. (16),912 pp. + register.

Leipzig, Brath, 1918. 8vo. In full cloth with gilt lettering to spine. In "Annalen der Physik", Vierte Folge, Band 56. Entire volume offered. Library labels pasted on the pasted down front free end paper. Traces after a label to lower part of spine. Stamp to title page. Internally fine and clean. Pp. 497-506. [Entire volume: VIII, 1152 pp.]. First appearance of Laue's early paper on X-ray interference and mixed crystals.

Cont. hcalf. Gilt Bback. Corners bumped. XVI,784 pp., slightly brownspotted. (Bibliothek von Vorlesungen, Bd. IX:2). First German edition.

Kbhvn., 1844. Samt. hldrbd. med rygforgyldning. Ryg lidt slidt. (4),363 pp. Trykt på kraftigt velin.

London, Tyne Publishing Comp., (1881). Orig. full cloth. Edges gilt. 351 pp. + Advertisements, 3 large folded maps ( 1 with tearin right margin, no loss).

Halle, Maisons des Orphelins, 1771. Large 4to. Contemp. full calf. Richly gilt back. Binding a little rubbed. With the gilt monogram of King Christian 7 on frontcover. Large engraved titlevignette (Maison des Orphelins a Halle). (4),1284 pp.

Berlin, Springer, 1920. 8vo. Bound in contemporary half cloth with gilt lettering to spine. In "Zeitschrift für Physik", Bd. 1, 1920. Entire volume offered. Library stamp to front free end paper and title page, light wear to extremities. Pp. 201-214. [Entire volume: V, (1), 418 pp.]. First printing of Schrödinger paper on his little know research area: colorimetry."His first papers on relativity pointed to a second major field of interest. In addition to these works, and his early papers on relativity, Schrödinger made a detailed study, through both measurement and computation, of the metric of color space and the theory of color vision." (DSB).

Kbhvn., 1915. Royal8vo. (335) pp., tekstillustr., kort og plancher.

København, Kirkeskovs Forlag, 1942-43. 4to. 2 orig. hshirtbd. Kapitæler let slidte. Stempel på titeblad. 400;509,(3) pp. Rigt illustr og med plancher.

Liege, Philippe Gramme, 1757. Small 8vo. Fine contemp. full mottled calf, richly gilt spine. XXXIV,586 pp. 2 leaves loosening. Internally clean and fine.

København, Gyldendal, 1947. Folio. Med orig. bogtrykte for-og bagomslag i privat halvmaroquin. 92 pp., rigt illustreret. (Ældre Nordisk Architectur udgivet af Aage Roussell XI).

Berlin, A. Bath, 1864-67. Bound in 3 cont. modest hcalf. Backs rubbed.

Biponti (Zweybrücken), 1782. Fine recent sprinckled hcalf. Gilt back. Gilt titlelabel. Engraved portrait of Epicur on title. XXXII,318 pp. + Index.

Wriezen a.0 (um 1850). Cont.hcalf. XV,124 pp. and 27 fold.litogr.plates.

Gösta Malmborgs efterlämnade Anteckningar på Uppdrag fullständigade och utgivna. Sth., 1936. Lille 4to. M.dedik. X,467 pp., tekstillustr.og plancher.