Banda Research Project team member Mensah Listowell processes soil samples from Makala Kataa using a bucket flotation method. The large head pan is filled with water into which he lowers a wire mesh basket filled with soil. As he gently shakes the basket, the soil dissolves and passes through the basket mesh. He uses a small mesh ladle to skim the seeds and charcoal ("light fraction") that float to the top of the water inside the basket. The "heavy fraction" which remains in the basket after the soil has washed away will be set aside to dry. It will be sorted for small artifacts like beads that may have been missed during excavation. Ahenkro, 1994.
Banda Research Project team members use a datum string, pulled tight and leveled with a bubble level, to measure the depth below datum of the excavation unit's surface. Yaw Francis (right) holds the string level as Yaw Frimpong (left) measures the depth close to the bubble level. By taking periodic measurements as they dig across the unit, they ensure that the surface of each completed level is even. A head pan and short handled hoe sit next to excavated dirt in the unit. Maria Dores Cruz (far left) and other team members work on an adjacent excavation unit on Mound 6, Station 6. Makala Kataa, 1994.
Banda Research Project team members use a datum string pulled tight and leveled with a bubble level as a reference for measuring the depth below datum of the excavated surface. Alex Ababio (right) holds the datum string level and tight while Osei Kofi helps another team member to straighten the tape measure in order to make an accurate measurement. A short handled hoe lays in the bottom of the unit. Timothy Fordour stands nearby (far right) by a headpan. Mound 3, Station 10. Makala Kataa, 1994.
In preparation for beginning excavation of a new 2 x 2 m unit, Banda Research Project team members Leith Smith (right) and Victor Mattey (left) extend grid points on Mound 6, Station 6, Makala Kataa. Smith uses a rock to pound in a grid peg at a point established using tape measures extended from previously placed grid pegs. The accuracy of the peg's location in this 2 m interval grid is checked according to horizontal (2 m) and diagonal (5.66 m) measurements from the other unit pegs. Low piles of sieved dirt from ongoing excavations are visible in the background. Makala Kataa, Station 6, 1994.
Members of the Banda Research Project, Maria Dores Cruz (left) and Osei Kofi (right) stand near a surveying level mounded on a tripod. The level was used to map the site's contours and establish grid lines to orient excavation units. A local-made short-handled hoe lies in front of the tripod, its wide flat blade standing upright. Bottom left are stacked headpans used to move soil between excavation units and screens. Station 6, Makala Kataa, June 1994.
To the right of a large tree, a field planted with tobacco is seen from the roadside. After clear-cutting, the rectangular field was tractor-plowed and planted with seedlings provided by the Pioneer Tobacco Company. Trees left standing mark the edges of the field. Visible in foreground is scarring created by construction of a new grated road. Near Nyrie, June, 1994.
A roadside agricultural field is planted with cassava (Manihot esculenta). The palmate leaves of the mature plants are visible growing among trees that were left standing when the intercropped field was first prepared. Regular weeding is needed to control spear grass, which can be seen growing at the edge of the field. Cassava is grown for its tubers, which can be harvested over a long period and store well when processed and dried. Its leaves are valued as an ingredient in soups. Planted early in the rainy season (April-May) the tubers mature in 6-18 months, depending on variety. Cassava tolerates poorer soils than yams (Dioscorea sp.), which are a preferred food in the area. Therefore, cassava it is grown in intercropped fields after yams are grown in the first year or two and before fields are left to fallow. Roadside near Nyire, August, 1994.