1. Soil sample Museum number: 3-15310 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
2. Soil sample Museum number: 3-15309 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
3. Soil sample Museum number: 3-15304 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
4. Soil sample Museum number: 3-15299 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 3 (Gifford), Northeast shore midden, Sonoyta River lagoon, Sonora Collection date: December 23, 1948
5. Soil sample Museum number: 3-15306 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
6. Soil sample Museum number: 3-15301 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 3 (Gifford), Northeast shore midden, Sonoyta River lagoon, Sonora Collection date: December 23, 1948
7. Soil sample Museum number: 3-15307 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
8. Soil sample Museum number: 3-15308 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948
9. Soil sample Museum number: 3-15300 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 3 (Gifford), Northeast shore midden, Sonoyta River lagoon, Sonora Collection date: December 23, 1948
10. Soil sample Museum number: 3-15305 Object class: Soil samples Collector: Edward W. Gifford and William Egbert Schenck Collection place: Site 1 (Gifford), La Choyo beach, Sonora, Mexico Collection date: December 24, 1948