F. Monteforte, The Valtellina landscape from Romanticism to Abstractionism , 1990, p. 151, plate 11 p. 80;
19th century paintings... , Finarte, 1994, p. 39, n. 65 with colour plates;
A. Scotti Tosini, Angelo Morbelli. Between Realism and Divisionism , Turin, 2001, p. 149, color plates p. 97

On the frame the writing: "The darker shadows of the sky are in relation to the state of the sky. The sky is a bit reddish. The rocks are less evident, always in relation to the sky and air. The rocks are more and more purple while the low ones seem dark, perhaps because they are always wet, the chiaroscuro is more pronounced because they are closer. The contours of the stones and snow are softer". Aurora Scotti's notes on the subject are fascinating: "The autographed notes would lead to the hypothesis of a true recording of the variations in light phenomena (the meteorological value of the representation), justifying the early dating to 1896, under the urgency of the first discovery of the mountains of Valfurva". Here, in Morbelli, we witness the first personal reflection and declination of noting on the canvas the effects of what is also a mental state before nature, trying to decode its secrets.