in C#, how do you call a classes constructor from an overloaded constructor?

For example.

Code:
public class Test
{
	private string _arg1 = string.Empty;
	private string _arg2 = string.Empty;

	public Test(string Arg1)
	{
		_arg1 = Arg1;
	}
	public Test(string Arg1, string Arg2)
	{
		Test(Arg1);
		_arg2 = Arg2;
	}
}
In VB.NET, since you use call the constructor sub "New" you can have many New subs as long as it obeys overloading rules. Then you can call the first constructor from within the second one.. to cut down on duplicate coding...

how would I do this in C#? I am sure its just a syntax thing that I am not familiar with.