THE 



NATURE-STUDY REVIEW 



DEVOTED PRIMARILY TO ALL SCIENTIFIC STUDIES OF NATURE IN 

 ELEMENTARY SCHOOLS 



Vol. 7 



March, 1911 



No. 3 



A YEAR WITH KATYDIDS 



By META SCHLUNDT, Evansville, Ind. 



[Editor's Note: Mr. Meier explains that the author of this admir- 

 able study is a junior student in the Evansville High School, pursuing her 

 first science work in a course of physiology taught from the view point 

 of general biology. We shall be more than pleased to receive similar 

 papers from other sources.] 



One day, early in the spring, one of the students in our 

 school brought in a small twig of a grape vine, on which were 

 two rows of small, brown, hard, flattened, oval-shaped bodies, 

 about one-fourth of an inch long. There were five of these 

 bodies in a row, overlapping each other. An insect key con- 

 firmed the supposition that they were katydid eggs, although I, 

 at first, made the error, which, I have read since, is often made 

 by people, of taking them for the San Jose scale. A projection 

 of the stem had apparently prevented the depositing of more 

 eggs ; for the normal rows, as I found later, are longer. Several 

 weeks later, in the latter part of March, I discovered a twig of 



KATTD/0 f SGS 



3. D**S OiO 



i o « r i Oi 



the Red-bud tree with twenty eggs on it, ten in each row. These 

 were put with the others into a covered tumbler and placed on 

 the window-sill of the laboratory, to await the coming of warm 

 weather. 



The following months were very unfavorable for the de- 



