Plan, Elevation, Section of the Flooring of the Building at the South Western Angle, 6th May 1818

1.section showing the iron work of (??) girder for National History classroom 2. plan of top of guide for national history museum 3. plan of bottom of girder for national history museum 4. elevation showing the iron work of (??)girder over Lower Laboratory 5. section showing the manner of supporting the floor of Chemistry class with cart iron columns (two pictures) 6. plan showing cap of column screwed to joint 7. plan showing bale of column resting on front pier 8. section showing iron column supporting floor of Chemistry Class 9. section showing strong joist notched down on Beaming joint 10. section explaining the construction of the double framed floor of National History Classroom and over Lower Laboratory (2 pictures)

these pictures showing the construction of the flooring, mainly deal with the iron and wooden structures. In these technic pictures, we can see how the wood and iron structures are jointed together and how those structures connected with walls and piers

On the reverse of the drawing: Black ink pen watercolour ( pink, dark pink, yellow, orange, brown, dark brown, grey+ dark grey showing the shadows)