download_pics.rb

require 'net/http'
require 'uri'
require 'nokogiri'
require 'open-uri'

$address = 'http://www.asia.si.edu/archives/finding_aids/sevruguin.html'
$path = "~/Downloads/"

url = URI.parse($address)
puts "downloading"
doc = Nokogiri::HTML(open($address))
puts "downloaded"
doc.css('a[href*=jpg]').each do |link|
  puts link.methods if i==0
  puts link
  Net::HTTP.start(url.host, url.port) {|http|
    File.open($path+ File.basename(link['href']), "w+b", 0644){|f| 
      f.write http.get(link['href']).body
    }
  }  
end