122 



THE AMERICAN MONTHLY 



[Apr 



Wanted. — Microscopic preparations illustrating- the his- 

 tolog-y of petals and sepals. Would like to g"et a full set for 

 John H. Lowell, Waldoboro, Maine. 



^Vanted. — Earth containg- diatoms from Redondo Beach 

 for a European subscriber who offers cash, or, in exchang-e, 

 Hung-arian diatomaceous material from St. Peter. C. W. S. 



Prize. — The Philadelphia Academy of Surg-ery offers a 

 $1,000 prize for a ISO-pag-e essay on some surg-ical subject 

 in pathology or practice. Open until October, 1901. Ad- 

 dress : 219 S. 13th., Street, Philadelphia, Pa. 



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