These arrays consist of up to 200 tissue cores arrayed on standard microscope slides. Applied in duplicate in a paraffin matrix, the current sets of 600-µm diameter by 4-mm thick cores are derived ...

Wesley R. Coe, professor of zoology at Yale during the early 20th century, devoted his career to studying ribbon worms — a group of mostly marine-dwelling creatures that includes more than 1,000 known ...