From Tench Tilghman
Baltimore [Md.] 18th Augt 1784.
I have recd your Excellency’s letters of the 4th and 11th. The first inclosing Bank Bills for 90 dollars which I beleive is more than sufficient—but Mr Peters has been so ill, that I have not been able to procure the Cost of the wheat Fan. My Clerk remembers shipping the Handle from hence.
I am glad your Carpenter is like to please you—Having not met with a Bricklayer, I shall desist looking further untill you may again direct me.
Inclosed you will find answers to your several Queries respecting the Green House in the order in which they were put,1 and that you may the better understand the Construction of Mrs Carrolls, I have made a rough Plan of the Manner of conducting the Flues 2—your Floor being 40 feet long, Mrs Carrol recommends two Flues to run up the Back Wall, because you may then increase the number of Flues which run under the Floor, and which she looks upon as essential—The Trees are by that mean kept warm at the Roots—she does not seem to think there is any occasion for the Heat to be conveyed all round the Walls by means of small Vacancies left in them, she has always found the Flues mark’d in the plan sufficient for her House.
She recommends it to you to have the upper parts of your Window sashes to fall down, as well as the lower ones to rise—you then give Air to the Tops of your Trees.
Your Ceiling she thinks ought to be Arched and at least 15 feet high—she has found the lowness of hers which is but 12 very inconvenient.
smooth stucco she thinks preferable to common Plaister because dryer.
The Door of the House to be as large as you can conveniently make it—otherwise when the Trees come to any size, the limbs are broken and the Fruit torn off in moving in and out.
It is the Custom in many Green Houses to set the Boxes upon Benches—But Mrs Carrol says they do better upon the Floor because they then receive the Heat from the Flues below to more advantage.
1. Tilghman answered GW’s queries in this way (DLC:GW):
|1st||dimensions of Mrs Carrolls Green House||1st||24 by 12|
|2d||What kind of Floor||2d||Tile|
|3d||How high from the floor to the Bottom of the Window frame||3d||16 Inches|
|4.||Height of the Windows from Bottom to Top.||4th||9 feet|
|5.||How high from Top of the Windows to the Ceiling||5th||18 Inches|
|6.||Whether the Ceiling is flat or Arched||6.||Flat—but Arches recommended|
|7.||Whether the heat is conveyed by Flues and a Grate||7th||Vid. Plan|
|8.||Whether the Grate is in the out or the Inside||8th||Vid. Plan|
|9th||Whether the Flues run all round the House||9th||Vid. Plan|
|10th||The Size of them without and in the Hollow||10th||2½ feet in the Clear as plan|
|11th||& 12th||Answered in the Foregoing.|
2. In the enclosed sketch Tilghman draws an “A” on either side of the “S. E. Front in which are four Windows.” Parallel to the two As, he has a line of three Bs. Perpendicular to the middle B, he has C and, at the back, D. His F is to the right of the As, at the right-hand wall of the greenhouse. On the left-hand wall he shows one “Window” and one “Door about 6 feet wide.” He gives a key to his letters, A through E: