In Val Sasina.
In Val Sasina, between Vimognio and Introbbio, to the right hand, going in by the road to Lecco, is the river Troggia which falls from a very high rock, and as it falls it goes underground and the river ends there. 3 miles farther we find the buildings of the mines of copper and silver near a place called Pra' Santo Pietro, and mines of iron and curious things. La Grigna is the highest mountain there is in this part, and it is quite bare.
[Footnote: 1030 and 1031. From the character of the handwriting we may conclude that these observations were made in Leonardo's youth; and I should infer from their contents, that they were notes made in anticipation of a visit to the places here described, and derived from some person (unknown to us) who had given him an account of them.]
1032.
The lake of Pusiano flows into the lake of Segrino [Footnote 3: The statement about the lake Segrino is incorrect; it is situated in the Valle Assina, above the lake of Pusiano.] and of Annone and of Sala. The lake of Annone is 22 braccia higher at the surface of its water than the surface of the water of the lake of Lecco, and the lake of Pusiano is 20 braccia higher than the lake of Annone, which added to the afore said 22 braccia make 42 braccia and this is the greatest height of the surface of the lake of Pusiano above the surface of the lake of Lecco.
[Footnote: This text has in the original a slight sketch to illustrate it.]
1033.
At Santa Maria in the Valley of Ravagnate [Footnote 2: Ravagnate
(Leonardo writes Ravagna) in the Brianza is between Oggiono and
Brivio, South of the lake of Como. M. Ravaisson avails himself of
this note to prove his hypothesis that Leonardo paid two visits to
France. See Gazette des Beaux Arts, 1881 pag. 528:
_Au recto du meme feuillet, on lit encore une note relative a une vallee "nemonti brigatia"; il me semble qu'il s'agit bien des monts de Briancon, le Brigantio des anciens. Briancon est sur la route de Lyon en Italie. Ce fut par le mont Viso que passerent, en aout 1515, les troupes francaises qui allaient remporter la victoire de Marignan.
Leonard de Vinci, ingenieur de Francois Ier, comme il l'avait ete de Louis XII, aurait-il ete pour quelque chose dans le plan du celebre passage des Alpes, qui eut lieu en aout 1515, et a la suite duquel on le vit accompagner partout le chevaleresque vainqueur? Auraitil ete appele par le jeune roi, de Rome ou l'artiste etait alors, des son avenement au trone?_] in the mountains of Brianza are the rods of chestnuts of 9 braccia and one out of an average of 100 will be 14 braccia.
At Varallo di Ponbia near to Sesto on the Ticino the quinces are white, large and hard.
[Footnote 5: Varallo di Ponbia, about ten miles South of Arona is distinct from Varallo the chief town in the Val di Sesia.]
Notes on places in Central Italy, visited in 1502 (1034-1054).
1034.
Pigeon-house at Urbino, the 30th day of July 1502. [Footnote: An indistinct sketch is introduced with this text, in the original, in which the word Scolatoro (conduit) is written.]
1035.
Made by the sea at Piombino. [Footnote: Below the sketch there are eleven lines of text referring to the motion of waves.]
1036.
Acquapendente is near Orvieto. [Footnote: Acquapendente is about 10 miles West of Orvieto, and is to the right in the map on Pl. CXIII, near the lake of Bolsena.]
1037.
The rock of Cesena. [Footnote: See Pl. XCIV No. 1, the lower sketch.
The explanation of the upper sketch is given on p. 29.]
1038.
Siena, a b 4 braccia, a c 10 braccia. Steps at [the castle of]
Urbino. [Footnote: See Pl. CX No. 3; compare also No. 765.]
1039.
The bell of Siena, that is the manner of its movement, and the place of the attachment of the clapper. [Footnote: The text is accompanied by an indistinct sketch.]
1040.
On St. Mary's day in the middle of August, at Cesena, 1502.
[Footnote: See Pl. CX, No. 4.]
1041.
Stairs of the [palace of the] Count of Urbino,—rough. [Footnote:
The text is accompanied by a slight sketch.]
1042.
At the fair of San Lorenzo at Cesena. 1502.
1043.
Windows at Cesena. [Footnote: There are four more lines of text which refer to a slightly sketched diagram.]
1044.
At Porto Cesenatico, on the 6th of September 1502 at 9 o'clock a. m.
The way in which bastions ought to project beyond the walls of the towers to defend the outer talus; so that they may not be taken by artillery.
[Footnote: An indistinct sketch, accompanies this passage.]
1045.
The rock of the harbour of Cesena is four points towards the South
West from Cesena.
1046.
In Romagna, the realm of all stupidity, vehicles with four wheels are used, of which O the two in front are small and two high ones are behind; an arrangement which is very unfavourable to the motion, because on the fore wheels more weight is laid than on those behind, as I showed in the first of the 5th on "Elements".
1047.
Thus grapes are carried at Cesena. The number of the diggers of the ditches is [arranged] pyramidically. [Footnote: A sketch, representing a hook to which two bunches of grapes are hanging, refers to these first two lines. Cesena is mentioned again Fol. 82a: Carro da Cesena (a cart from Cesena).]
1048.
There might be a harmony of the different falls of water as you saw them at the fountain of Rimini on the 8th day of August, 1502.
1049.
The fortress at Urbino. [Footnote: 1049. In the original the text is written inside the sketch in the place here marked n.]
1050.
Imola, as regards Bologna, is five points from the West, towards the
North West, at a distance of 20 miles.
Castel San Piero is seen from Imola at four points from the West towards the North West, at a distance of 7 miles.
Faenza stands with regard to Imola between East and South East at a distance of ten miles. Forli stands with regard to Faenza between South East and East at a distance of 20 miles from Imola and ten from Faenza.
Forlimpopoli lies in the same direction at 25 miles from Imola.
Bertinoro, as regards Imola, is five points from the East to wards the South East, at 27 miles.
1051.
Imola as regards Bologna is five points from the West towards the
North West at a distance of 20 miles.
Castel San Pietro lies exactly North West of Imola, at a distance of 7 miles.
Faenza, as regards Imola lies exactly half way between the East and South East at a distance of 10 miles; and Forli lies in the same direction from Imola at a distance of 20 miles; and Forlimpopolo lies in the same direction from Forli at a distance of 25 miles.
Bertinoro is seen from Imola two points from the East towards the
South East at a distance of 27 miles.
[Footnote: Leonardo inserted this passage on the margin of the circular plan, in water colour, of Imola—see Pl. CXI No. 1.—In the original the fields surrounding the town are light green; the moat, which surrounds the fortifications and the windings of the river Santerno, are light blue. The parts, which have come out blackish close to the river are yellow ochre in the original. The dark groups of houses inside the town are red. At the four points of the compass drawn in the middle of the town Leonardo has written (from right to left): Mezzodi (South) at the top; to the left Scirocho (South east), levante (East), Greco (North East), Septantrione (North), Maesstro (North West), ponente (West) Libecco (South West). The arch in which the plan is drawn is, in the original, 42 centimetres across.
At the beginning of October 1502 Cesare Borgia was shut up in Imola by a sudden revolt of the Condottieri, and it was some weeks before he could release himself from this state of siege (see Gregorovius, Geschichte der Stadt Rom im Mittelalter, Vol. VII, Book XIII, 5, 5).
Besides this incident Imola plays no important part in the history of the time. I therefore think myself fully justified in connecting this map, which is at Windsor, with the siege of 1502 and with Leonardo's engagements in the service of Cesare Borgia, because a comparison of these texts, Nos. 1050 and 1051, raise, I believe, the hypothesis to a certainty.]
1052.
>From Bonconventi to Casa Nova are 10 miles, from Casa Nova to Chiusi 9 miles, from Chiusi to Perugia, from, Perugia to Santa Maria degli Angeli, and then to Fuligno. [Footnote: Most of the places here described lie within the district shown in the maps on Pl. CXIII.]
1053.
On the first of August 1502, the library at Pesaro.
1054.