326 



Transactions of the Society. 



which the Sarcoptes had heen frequently confused. A few years 

 later this alarming aspect of the affection was somewhat modified 

 by the well-known medical writer Ettmuller (1644-1683), who in 

 1682 figured tortoise-like organisms that may he recognized as' 

 caricatures of our Acarus* (fig. 38). 



The terrors of the learned world, perhaps allayed hy Ettmuller, 



tsha.'-xi'OSrx i 





^^JcrmicuXnJ 1 pa,rvius OVUuui i 



CK~( 



Fig. 39. — Sarcoptes scabiei, from the " Micrographia Nova " 

 of Griendelius, 1687. 



must have been raised to the highest pitch in 1687 by the ingenious 

 Griendelius, who in his " Micrographia Nova " t presents to. us a 

 hideous monster well calculated to disturb the rest of the most 

 phlegmatic of patients (fig. 39). i For the fears of such sufferers, 

 however, deliverance was at hand. Later in the same year the 

 Sarcoptes scabiei was drawn in truer proportions by two Italian 

 writers, Bonomo and Cestoni (fig. 40) in a letter to the poet-naturalist 



From that work dates the modern knowledge of 



Francesco Redi.f 



* Michael Ettmuller in " Acta Eruditorum," Leipsig, 1682, p. 316.- 

 t Johan Francis Griendelius, " Micrographia Nova," Nuremburg, 16.87. • . • 

 . | " Osservazioni intorno ai pellicelli del corpo umano fatte dal Dottor Gio. 



Cosimo Bonomo e da lui con;altre osservazioni scritte in una Lettera all' Illustriss. 



Sig. Francesco Redi," Florence, 1687. . >- - ■ 



