multiple solc versions

solc-versions.js

const solc = require('solc');
const solcV0410 = solc.useVersion('v0.4.10+commit.f0d539ae')

const simpleContract = 'contract Simple { function g() {} }';

var outputLatest = solc.compile(simpleContract);
console.log(outputLatest.contracts[':Simple']['bytecode']);

// get a legacy version
// This requires this file: https://raw.githubusercontent.com/ethereum/solc-bin/gh-pages/bin/soljson-v0.4.10%2Bcommit.f0d539ae.js
// to be located in node_modules/solc/bin
// to do that, run 
// `$ wget https://raw.githubusercontent.com/ethereum/solc-bin/gh-pages/bin/soljson-v0.4.10%2Bcommit.f0d539ae.js ./node_modules/solc/bin/
var outputV0410 = solcV0410.compile(simpleContract, 1)
console.log(outputV0410.contracts[':Simple']['bytecode']);

John, That's a perfect download source. It worked for me.
One question:
Do this solc-bin/ subfolder has all the versions and according "soljson....js" file ?
One weird thing:
./node_module/solc/bin doesn't help me create the /bin subfolder since by default I don't have them. I have to manually add that in my file system and then execute the download command. -- which means we still need to do the add mkdir in our script, but I'm not sure whether that require authentication enforced by node access control .