Harrison, Elizabeth, 1849-1927 · St. Louis, Mo., Chicago, Ill., Sigma publishing company · leaf 182
166 The: kindergarten building gifts. … No. 42. Showing the same form as No. 41, after five of the blocks on each side of the triangle have been moved toward the center. encircling form, almost round in shape, is obtained, and we see now more clearly than ever before, that all "radiating forms" are forms whose strength lies at the center…
Internet Archive · National-Louis University Library, Archives and Special Collections · Public domain (published before 1931). Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-260-443.webp)
![An illustration from Essai de physique, par Mr. Pierre van Musschenbroek ... avec une description de nouvelles sortes de machines pneumatiques, et un recueil d'expériences par Mr. J. v[an] M[usschenbroek] Traduit du hollandois par Mr. Pierre Massuet .. (1751)](https://img.insideoutlibrary.com/img/200/ia-essaidephysiquep01muss-130-39.webp)
