Alfred Rowden was a keen amateur photographer and natural historian in Exeter. He often gave talks at local field clubs, illustrated with magic lantern slides that he created or purchased from commercial manufacturers.
handwritten 'Z 133 Fly's track Z 133' on top edge
handwritten 'Bacteria left by fly after crossing sterile gelatine plate / A.O. Rowden / S.C.P. Z.133' on masking strips
This object is not on display.