Slide showing a photograph of 'Spirorbis borealis and polyzoa on Laminaria, thrown upon storm'. Slide shows a black and white photograph of 'Spirorbis borealis and polyzoa on Laminaria, thrown upon storm'. Circa fifty molluscs can be seen. 'X235' can be seen on the top right corner and a label saying 'Zoology R W' can be seen at the top of the slide, as can the number '10'. Title at the bottom is handwritten in ink and reads: 'Spirorbis borealis and polyzoa on Laminaria, thrown upon storm'. Late 19th to early 20th century