Reise um die Welt, ausgeführt mit seinem Bruder und Freunden in den Jahren 1871, 1872 und 1873. Alte Reiseerinnerungen in Wort und Bild.: A travel around the world in the years 1871, 1872 and 1873.

5 illustrated text-volumes and 3 volumes with original pen- and ink drawings by the traveller (= complete). Text-volumes illustrated with 281 original photographs (each ca 75 x 74 mm to 125 x 82 mm) of places and people and 276 photographs with reproductions of pen- and ink sketches (each ca 126 x 72 mm) pasted onto to 183 plates. 443 unnumb. leaves, including a photo portrait of the author, and 3 maps. Atlas-volumes illustrated with 287 original pen- and ink sketches by the author (each ca 135 x 80 mm), mounted to 36 cardboard leaves with views of towns, landscapes and local residents.

Compehensive and detailed description of a world tour by Friedrich Zahn-Geigy (1848-1929), a 23-year-old descendant of a Swiss banker's family from Basle. The journey, not only undertaken for educational purposes solely, but as is related in the text also for business reasons, visiting long-standing business partners and looking out for new fields of business especially in the US and South East Asia, first led them to the United States of America and Canada, then Japan and China to India, and back to Basle via Egypt, Turkey and Austria. After his return, he became an influential banker in Basle and in the course of his career, a member of the Board of the Swiss Bankers Association.

Volume I contains his records of America and Canada (Niagara Falls, Quebec and Montreal), his three-month stay in New York and travels to Florida, Cuba, New Orleans, St. Louis, Minneapolis, Chicago, Salt Lake City and a longer stay in San Francisco and the surrounding area in order to investigate the possibility of investments in gold mines illustrated with 60 photographs and 96 original pen- and ink drawings.
Volume II with his travels in Japan, which only in 1864 signed a trade agreement with the Swiss government. He travelled widely and stayed in Yokohama, Tokyo, Osaka and Nagasaki illustrated with 54 photographs and 40 original pen- and ink drawings .

Volume III contains his notes on China, Vietnam and Cambodia, Singapure, Java and Penang with descriptions of Shanghai, Canton, Hong Kong, Macao, Saigon, Singapore and Jakarta illustrated with 59 photographs and 56 original pen-drawings. Volume IV with a description of his travels in Sri Lanka and India illustrated with 76 photographs and 44 original pen- and ink drawings.
Volume V contains notes on his home-coming via Suez, and Cairo, Alexandria, Smyrna, Constantinople, Pest, Vienna back to Basle illustrated with 34 photographs and 52 original pen- and ink drawings.
The present typescript, together with the illustrations were made by the author starting with volume I from 1907 onwards and then more intensively from 1917-1923. The text is based on the travelogues and letters, the photographs, both his own and purchased ones (in volume I he mentions more than 500 large-format photographs), of which he made scaled down prints, and last but not least, he himself copied his pencil drawings made on the spot during the travels