J. Harrison in 1726 and 1775, for making two chronometers, which gave the longitude within 10' 45" of the truth. Rewards were offered for further discoveries. The Board of Longitude was abolished in 1828.--_Life of Sir Isaac Newton_, vol. ii.

p. 258-267. Sir David Brewster.

[246] These cryptographs were first published by Sir David Brewster in his _Life of Sir Isaac Newton_, vol. ii. p. 263, ed. 1855.

No key was found until Mr. Francis Williams, of Grange Court, Chigwell, sent the following:

1. WAcCHhMArGNwETrICeBAnLAmNCdEWcOUcNDxINiVAvCUzO.

Wach magnetic balance wound in vacuo.

(One letter a misprint).

Omitted letters make CHR. WREN, MDCCXIV.

2. FIcXHhEArDHwIPrPEeSHnANmDEdSPcOIcs.e.xTUiBEiONiEYieZ.

Fix head hippes handes poise tube on eye.

(One letter a misprint).

Omitted letters make CHR. WREN, MDCCXIIII.

3. PIcPEhSCrRewWErMOeVInNGmWHdEEcLScFRxOMiBEvAKzE.

Pipe screwe moving wheels from beake.

Omitted letters make CHR. WREN, MDCCXIV.

The three last omitted Z,s occurring in the first part of each cipher to show that that part must be taken _last_.--_Report of the British a.s.sociation for 1859._

[247] 'Beneath is laid the builder of this church and city, Christopher Wren, who lived more than ninety years, not for himself, but for the good of the State. Reader, if thou ask for a monument, look around thee.'

APPENDICES.

APPENDIX I.

_REVERENDO PATRI DOMINO CHRISTOPHORO WREN, S.T.D. ET D. W.

CHRISTOPHORUS FILIUS HOC SUUM PANORGANUM ASTRONOMIc.u.m D. D. XIII.

CALEND. NOVEM. ANNO 1645_, p. 73.

Si licet, et cessent rerum (Pater alme) tuarum Pondera, devotae respice prolis opus.

Hic ego sidereos tentavi pingere motus, Coelicaque in modulos conciliare breves.

Quo (prolapsa diu) renoventur tempora gyro, Seculaque, et menses, et imparilesque dies.

Quomodo Sol abeat, redeatque, et temperet annum, Et (raptum contra) grande perennet iter; Cur nascens gracili, pleno orbe refulget adulta, Cur gerat extinctas menstrua luna faces.

His ego numinibus dum cito, atque ardua mundi, Scrutor, et arcanas conor inire vias, Adsis, O! faveasque, pater, succurre volanti Suspensum implumis dirige prolis iter, Ne male, praecipiti, nimium prae viribus audax (Sorte sub Icarea) lapsus ab axe ruam: Te duce, fert animus, studiis sublimibus hisce Pasci, dum superas detur adire domos.

APPENDIX II.

_CHURCHES, HALLS, COLLEGES, PALACES, OTHER PUBLIC BUILDINGS, AND PRIVATE HOUSES, BUILT AND REPAIRED BY SIR CHRISTOPHER WREN._

_Churches._

S. Alban, Wood Street.

S. Lawrence, Jewry.

* All Hallows, Bread Street.

S. Magnus, London Bridge.

" Lombard Street.

S. Margaret Lothbury, Pattens, " Upper Thames St.

Rood Lane.

All Saints, Isleworth.

S. Martin, Ludgate Hill.

S. Andrew, Holborn.

S. Mary, Abchurch.

" by the Wardrobe.

" Aldermanbury.

SS. Anne & Agnes.

" Aldermary.

S. Anne, Soho (?).

" at Hill.

* S. Antholin, Watling St.

" le Bow.

S. Augustine.

* " Somerset.

* S. Bartholomew, Bartholomew

" Woolnoth.

Lane.

S. Mary Magdalen, Old Fish St.

* S. Benedict, Gracechurch Street.

S. Matthew, Friday Street.

* " Fink, Threadneedle

S. Michael, Ba.s.sishaw.

Street.

" Cheapside.

S. Benedict, Paul's Wharf.

" Cornhill.

S. Bride, Fleet Street.

* " Crooked Lane.

Chichester Cathedral.

* " Queenhithe.

Christ Church, Newgate.

" Royal, College Hill.

* S. Christopher, Threadneedle

S. Mildred, Bread Street.

Street.

* " Poultry.

S. Clement Danes, Strand.

S. Nicholas, Cole Abbey.

" Eastcheap.

S. Olave, Jewry.

Dartmouth Chapel, Blackheath.

S. Paul's Cathedral.

* S. Dionysius, Back Church.

S. Peter's Abbey, Westminster.

S. Dunstan in the East.

" Cornhill.

S. Edmund the King, Lombard

Salisbury Cathedral.

Street.

S. Stephen, Coleman Street.

S. Faith (Crypt of S. Paul's).

" Walbrook.

S. George, Botolph Lane.

S. Swithin, Cannon Street.

S. James, Garlickhithe.

S. Vedast, Foster Lane.

" Westminster.

* Signifies that the church has been destroyed.

_Halls._

Mercers Company.

Saddlers Company * Grocers "

Cordwainers "

Drapers "

Paper Stainers "

* Fishmongers "

Curriers "

* Goldsmiths "

Masons "

Skinners "

* Plumbers "

Merchant Taylors "

Innholders "

Haberdashers "

Founders "

* Salters "

Coopers "

Ironmongers "

Tilers and Bricklayers "