根据以下内容，回答题。
From: Paula Washington <pwashington@4seasonsgreenhouse.com> 
To: Clara Nash <order@coloniapottery.com> 
Subject: Order 
Dear Mr. Nash, 
My name is Paula Washington and I'm the owner of the Four Seasons Greenhouse in Lewis-ton. I was given your email address by Mr. Steve Halloway at the New England Florists' Conven-tion in Boston last fall. I would like to purchase a large number of clay pots from you. Our previ-ous supplier recently went out of business and we urgently need to replenish our stock. 
At this time, I would like to order four dozen of your plain six-inch clay pots, for dozen of your plain ten-inch clay pots, and two dozen of your large ornamental pots. I only want to make a small order at this time in order to test the quality of your merchandise. If this selection of prod-ucts from your inventory meets our standards, a second, large order will follow. 
Please arrange to have the clay pots delivered to our warehouse as quickly as possible. Be-cause these items are fragile, please forward them by special delivery to ensure that they are not damaged. Also, let me know the name of the carder you use, so I can access their online freight tracking system while these goods are in transit. 
Thank you very much. Please call me at 729-9928 if you have any questions. I hope this is the start of a mutually beneficial business relationship, 
Paula Washington Four Seasons Greenhouse 
Addressee: Remit to: 
Four Seasons Greenhouse Colonial Pottery Distribution Center 
161 North Highway 201 Atlantic Drive 
Lewiston, ME 04240Salem, MA 01970 
Statement: 
Date Description Amounts 
5/11/06 six-inch clay pots, plain (4 dozen)$36.00 
Ten-inch clay pots, plain (4 dozen) $48.00 
Sixteen-inch clay pots, ornamental (2 dozen) $240.00 
Shipping and handling (see below for details)$59.99 
Discount (see below for details) $32.40 
Amount due: $351.59 
Message: 
This shipment was sent by special delivery at the buyer's request. Please return any damaged items, along with the original receipt, within seven working days. 
A ten-percent discount applies to all first-time orders placed by retailers. This discount does not apply to shipping and handling charges. 
What is the purpose of Ms. Washington's email?