Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 1-61

Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 105-110

Published in Notes van de Leyden Museum, in 1891, in volume 13, pages 179-180

Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 181-187

Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 189-190

Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 207-209

Published in Notes from the Leyden Museum, in 1891, in volume 13, pages 233-238

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 1, pages 62

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 77-84

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 85-104

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 111-112

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 113-114

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 115-120

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 121-130

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 131-144

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 2, pages 145-146

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 147-150

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 151-153

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 154

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 155-157

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 158

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 159-160

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 161-166

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 167-175

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 176-178

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 188

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 191-195

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 196

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 197-201

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 202-206

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 210-216

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 217-222

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 3, pages 223-232

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 4, pages 239-240

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 4, pages 241-242

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 4, pages 249-250

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 4, pages 251-254

Published in Notes From The Leyden Museum, in 1891, in volume 13, issue 4, pages 255-256