Host specificity in parasitic acariens
  A new species of predaceous mite (Acarina: Cheyletidae) from galleries of bark beetles in Missouri
  Five genera of family Cheyletidae (Acarina) in the U.A.R. with a description of four new species
  Panonychus caglei, new species, the raspberry red mite (Acarina: Tetranychidae)
  Revision of the subfamily Apoloniinae Leeuwenhoekiidae Acarina
  Notes on three remarkable mites (Sarcoptiformes)
  Mites of the subfamily Dermatophagoidinae (Psoroptidae), collected in bird feathers
  New observations on Oribatei (6th serie).
