A revision of the species of the genus Neumania sensu stricto in North-America, with descriptions of seven new Species (fourth part)
  A revision of the rpecies of the genus Neumania sensu stricto in North-America, with descriptions of seven new species (third part)
  A revision of the species of the genus Neumania sensu stricto in North-America, with Descriptions of seven new species. (second part)
  A revision of the species of the genus Neumania sensu stricto in North-America, with descriptions of seven new species (first part )
  New species in the genus Sperchonopsis in North America with a description of a new subgenus, Sperchonopsella. (part II)
  New species in the genus Sperchonopsis in North-America with a description of a new subgenus, Sperchonopsella
  Acarology - Quo vadimus
  Limnesia cooki n. sp. and Piona habeebi n. sp., two new species of water mites (Acari, Hydrachnellae) from Western Canada