Is Mars Habitable A Critical Examination Of Professor Percival
Chapter 8
PAGE SUMMARY AND CONCLUSION, --The canals the origin of Mr. Lowell's theory --Best explained as natural features --Evaporation difficulty not met by Mr. Lowell --How did Martians live without the canals --Radiation due to scanty atmosphere not taken account of --Three independent proofs of low temperature and uninhabitability of Mars --Conclusion.