then　on　the　following　day　bring　it　into　a　warm　situation　where　the　ice
  will　thaw；　if　you　will　measure　the　water　again　when　dissolved　you　will
  find　it　much　less　in　quantity。　This　is　a　proof　that　the　lightest　and
  thinnest　part　is　dissipated　and　dried　up　by　the　congelation；　and　not
  the　heaviest　and　thickest；　for　that　is　impossible：　wherefore　I　hold
  that　waters　from　snow　and　ice；　and　those　allied　to　them；　are　the　worst
  of　any　for　all　purposes　whatever。　Such　are　the　characters　of
  rain…water；　and　those　from　ice　and　snow。
  9。　Men　become　affected　with　the　stone；　and　are　seized　with
  diseases　of　the　kidneys；　strangury；　sciatica；　and　become　ruptured；
  when　they　drink　all　sorts　of　waters；　and　those　from　great　rivers
  into　which　other　rivulets　run；　or　from　a　lake　into　which　many
  streams　of　all　sorts　flow；　and　such　as　are　brought　from　a　considerable
  distance。　For　it　is　impossible　that　such　waters　can　resemble　one
  another；　but　one　kind　is　sweet；　another　saltish　and　aluminous；　and
  some　flow　from　thermal　springs；　and　these　being　all　mixed　up
  together　disagree；　and　the　strongest　part　always　prevails；　but　the
  same　kind　is　not　always　the　strongest；　but　sometimes　one　and　sometimes
  another；　according　to　the　winds；　for　the　north　wind　imparts　strength
  to　this　water；　and　the　south　to　that；　and　so　also　with　regard　to　the
  others。　There　must　be　deposits　of　mud　and　sand　in　the　vessels　from
  such　waters；　and　the　aforesaid　diseases　must　be　engendered　by　them
  when　drunk；　but　why　not　to　all　I　will　now　explain。　When　the　bowels　are
  loose　and　in　a　healthy　state；　and　when　the　bladder　is　not　hot；　nor　the
  neck　of　the　bladder　very　contracted；　all　such　persons　pass　water
  freely；　and　no　concretion　forms　in　the　bladder；　but　those　in　whom
  the　belly　is　hot；　the　bladder　must　be　in　the　same　condition；　and
  when　preternaturally　heated；　its　neck　becomes　inflamed；　and　when　these
  things　happen；　the　bladder　does　not　expel　the　urine；　but　raises　its
  heat　excessively。　And　the　thinnest　part　of　it　is　secreted；　and　the
  purest　part　is　passed　off　in　the　form　of　urine；　but　the　thickest　and
  most　turbid　part　is　condensed　and　concreted；　at　first　in　small
  quantity；　but　afterwards　in　greater；　for　being　rolled　about　in　the
  urine；　whatever　is　of　a　thick　consistence　it　assimilates　to　itself；
  and　thus　it　increases　and　becomes　indurated。　And　when　such　persons
  make　water；　the　stone　forced　down　by　the　urine　falls　into　the　neck
  of　the　bladder　and　stops　the　urine；　and　occasions　intense　pain；　so
  that　calculous　children　rub　their　privy　parts　and　tear　at　them；　as
  supposing　that　the　obstruction　to　the　urine　is　situated　there。　As　a
  proof　that　it　is　as　I　say；　persons　affected　with　calculus　have　very
  limpid　urine；　because　the　thickest　and　foulest　part　remains　and　is
  concreted。　Thus　it　generally　is　in　cases　of　calculus。　It　forms　also　in
  children　from　milk；　when　it　is　not　wholesome；　but　very　hot　and
  bilious；　for　it　heats　the　bowels　and　bladder；　so　that　the　urine
  being　also　heated　undergoes　the　same　change。　And　I　hold　that　it　is
  better　to　give　children　only　the　most　diluted　wine；　for　such　will
  least　burn　up　and　dry　the　veins。　Calculi　do　not　form　so　readily　in
  women；　for　in　them　the　urethra　is　short　and　wide；　so　that　in　them
  the　urine　is　easily　expelled；　neither　do　they　rub　the　pudendum　with
  their　hands；　nor　handle　the　passage　like　males；　for　the　urethra　in
  women　opens　direct　into　the　pudendum；　which　is　not　the　case　with
  men；　neither　in　them　is　the　urethra　so　wide；　and　they　drink　more
  than　children　do。　Thus；　or　nearly　so；　is　it　with　regard　to　them。
  10。　And　respecting　the　seasons；　one　may　judge　whether　the　year
  will　prove　sickly　or　healthy　from　the　following　observations：…　If
  the　appearances　connected　with　the　rising　and　setting　stars　be　as　they
  should　be；　if　there　be　rains　in　autumn；　if　the　winter　be　mild；　neither
  very　tepid　nor　unseasonably　cold；　and　if　in　spring　the　rains　be
  seasonable；　and　so　also　in　summer；　the　year　is　likely　to　prove
  healthy。　But　if　the　winter　be　dry　and　northerly；　and　the　spring
  showery　and　southerly；　the　summer　will　necessarily　be　of　a　febrile
  character；　and　give　rise　to　ophthalmies　and　dysenteries。　For　when
  suffocating　heat　sets　in　all　of　a　sudden；　while　the　earth　is　moistened
  by　the　vernal　showers；　and　by　the　south　wind；　the　heat　is
  necessarily　doubled　from　the　earth；　which　is　thus　soaked　by　rain　and
  heated　by　a　burning　sun；　while；　at　the　same　time；　men's　bellies　are
  not　in　an　orderly　state；　nor　the　brain　properly　dried；　for　it　is
  impossible；　after　such　a　spring；　but　that　the　body　and　its　flesh
  must　be　loaded　with　humors；　so　that　very　acute　fevers　will　attack　all；
  but　especially　those　of　a　phlegmatic　constitution。　Dysenteries　are
  also　likely　to　occur　to　women　and　those　of　a　very　humid　temperament。
  And　if　at　the　rising　of　the　Dogstar　rain　and　wintery　storms　supervene；
  and　if　the　etesian　winds　blow；　there　is　reason　to　hope　that　these
  diseases　will　cease；　and　that　the　autumn　will　be　healthy；　but　if
  not；　it　is　likely　to　be　a　fatal　season　to　children　and　women；　but
  least　of　all　to　old　men；　and　that　convalescents　will　pass　into
  quartans；　and　from　quartans　into　dropsies；　but　if　the　winter　be
  southerly；　showery　and　mild；　but　the　spring　northerly；　dry；　and　of　a
  wintry　character；　in　the　first　place　women　who　happen　to　be　with
  child；　and　whose　accouchement　should　take　place　in　spring；　are　apt
  to　miscarry；　and　such　as　bring　forth；　have　feeble　and　sickly　children；
  so　that　they　either　die　presently　or　are　tender；　feeble；　and　sickly；
  if　they　live。　Such　is　the　case　with　the　women。　The　others　are
  subject　to　dysenteries　and　dry　ophthalmies；　and　some　have　catarrhs
  beginning　in　the　head　and　descending　to　the　lungs。　Men　of　a　phlegmatic
  temperament　are　likely　to　have　dysenteries；　and　women；　also；　from
  the　humidity　of　their　nature；　the　phlegm　descending　downwards　from　the
  brain；　those　who　are　bilious；　too；　have　dry　ophthalmies　from　the
  heat　and　dryness　of　their　flesh；　the　aged；　too；　have　catarrhs　from
  their　flabbiness　and　melting　of　the　veins；　so　that　some　of　them　die
  suddenly　and　some　become　paralytic　on　the　right　side　or　the　left。
  For　when；　the　winter　being　southerly　and　the　body　hot；　the　blood　and
  veins　are　not　properly　constringed；　a　spring　that　is　northerly；　dry；
  and　cold；　having　come　on；　the　brain　when　it　should　have　been
  expanded　and　purged；　by　the　coryza　and　hoarseness　is　then
  constringed　and　contracted；　so　that　the　summer　and　the　heat
  occurring　suddenly；　and　a　change　supervening；　these　diseases　fall　out。
  And　such　cities　as　lie　well　to　the　sun　and　winds；　and　use　good　waters；
  feel　these　changes　less；　but　such　as　use　marshy　and　pooly　waters；
  and　lie　well　both　as　regards　the　winds　and　the　sun；　these　all　feel
  it　more。　And　if　the　summer　be　dry；　those　diseases　soon　cease；　but　if
  rainy；　they　are　protracted；　and　there　is　danger　of　any　sore　that　there
  is　becoming　phagedenic　from　any　cause；　and　lienteries　and　dropsies
  supervene　at　the　conclusion　of　diseases；　for　the　bowels　are　not
  readily　dried　up。　And　if　the　summer　be　rainy　and　southerly；　and　next
  the　autumn；　the　winter　must；　of　necessity；　be　sickly；　and　ardent
  fevers　are　likely　to　attack　those　that　are　phlegmatic；　and　more
  elderly　than　forty　years；　and　pleurisies　and　peripneumonies　those　that
  are　bilious。　But　if　the　summer　is　parched　and　northerly；　but　the
  autumn　rainy　and　southerly；　headache　and　sphacelus　of　the　brain　are
  likely　to　occur；　and　in　addition　hoarseness；　coryza；　coughs；　and　in
  some　cases；　consumption。　But　if　the　season　is　northerly　and　without
  water；　there　being　no　rain；　neither　after　the　Dogstar　nor　Arcturus；
  this　state　agrees　best　with　those　who　are　naturally　phlegmatic；　with
  those　who　are　of　a　humid　temperament；　and　with　women；　but　it　is　most
  inimical　to　the　bilious；　for　they　become　much　parched　up；　and
  ophthalmies　of　a　dry　nature　supervene；　fevers　both　acute　and
  chronic；　and　in　some　cases　melancholy；　for　the　most　humid　and　watery
  part　of　the　bile　being　consumed；　the　thickest　and　most　acrid　portion
  is　left；　and　of　the　blood　likewise；　when　these　diseases　came　upon
  them。　But　all　these　are　beneficial　to　the　phlegmatic；　for　they　are
  thereby　dried　up；　and　reach　winter　not　oppressed　with　humors；　but　with
  them　dried　up。
  11。　Whoever　studies　and　observes　these　things　may　be　able　to　foresee
  most　of　the　effects　which　will　result　from　the　changes　of　the　seasons；
  and　one　ought　to　be　particularly　guarded　during　the　greatest　changes
  of　the　seasons；　and　neither　willingly　give　medicines；　nor　apply　the
  cautery　to　the　belly；　nor　make　incisions　there　until　ten　or　more
  days　be　past。　Now；　the　greatest　and　most　dangerous　are　the　two
  solstices；　and　especially　the　summer；　and　also　the　two　equinoxes；
  but　especially　the　autumnal。　One　ought　also　to　be　guarded　about　the
  rising　of　the　stars；　especially　of　the　Dogstar；　then　of　Arcturus；
  and　then　the　setting　of　the　Pleiades；　for　diseases　are　especially
  apt　to　prove　critical　in　those　days；　and　some　prove　fatal；　some　pass
  off；　and　all　others　change　to　another　form　and　another　constitution。
  So　it　is　with　regard　to　them。
  12。　I　wish　to　show；　respecting　Asia　and　Europe；　how；　in　all
  respects；　they　differ　from　one　another；　and　concerning　the　figure　of
  the　inhabitants；　for　they　are　different；　and　do　not　at