Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 299-310

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 287-290

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 179-181

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 165-175

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 182-193

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 3-27

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 117-130

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 194-200

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 291-298

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 311-320

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 76-106

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 176-181

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 74-82

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 186-188

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 190-193

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 55-68

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 28-42

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 248-270

Published in Transactions of The American Microscopical Society, in 1897, in volume 19, pages 189

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 146-150

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 142-145

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 49-70

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 282-286

Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 321-396