As workers in the field of ionic equilibrium in extracellular matrices and cells, and as contributors to this Journal of papers supporting an alternative explanation to that represented by the dominant schools of active transport (ionic pumps), we are surprised by the statement of Ling (1992, p. 449) which appears to limit published criticism of those schools to himself and A.S. Troshin. By an odd coincidence, our abstract (Catchpole et al., 1951) on the distribution of potassium and sodium through selective action of the cations with ground substance and water appeared simultaneously with that of Ling (1951): "Tentative hypothesis for selective ionic accumulation in muscle cells". We have also published papers and monographs since that distant time. So much, at least, for longevity.
Engel, M. B. and Catchpole, H. R.
"Letter to the Editor by M.B. Engel and H.R. Catchpole Relating to: "Can We See Living Structures in the Cell" [by G.N. Ling, Scanning Microscopy Vol. 6, p. 405-450 (1992)] and Reply by G.N. Ling,"
Scanning Microscopy: Vol. 7
, Article 49.
Available at: https://digitalcommons.usu.edu/microscopy/vol7/iss1/49