gistfile1.txt

require 'rubygems'
require 'nokogiri'
require 'httparty'

doc = Nokogiri(HTTParty.get('http://www.gutenberg.org/wiki/Harvard_Classics_(Bookshelf)'))

ids = doc.css('a').select{|a| a.attr('title') =~ /ebook:/ }.map do |a|
  a.attr('title') =~ /ebook:(\d+)/
  {:title => a.text, :id => $1 }
end.compact.uniq

ids.each  do |book|
  sleep 2
   File.open("/tmp/gutenberg/#{book[:id]}-#{book[:title]}", "w+") do |file|
      file << HTTParty.get("http://gutenberg.org/ebooks/#{book[:id]}.kindle.noimages")
   end
end