Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 28

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 29-40

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 49-50

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 51-56

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 57-68

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 87-90

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 91-95

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 97-164

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 189-192

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 337-339

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 341-346

Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 347-354