110 THE entomologist's RECORD. 



3rd, 3 $s ... 2 $s 



4th, 1 2 



5th, ... 1 cT 



6th, 1 ^ + 2 2 s 

 7th, 1 2 



8th, 1 J + 2 2s ... 2 2s 



„ 9tb, 2 2s 



„ 10th, 1 2 ... 1 ? 



„ nth, 1 <y + 1 2 ... 12 



12th, 3 2s... 32s 



„ 18th, 3 2s... 1 <? + 1 2 



14th, 

 „ 15th, 1 c? + 2 2s ... 1 (? 



16th, 2 <?s ... 2 2s 



„ 17th, 1 <? ... 3 2s 



18th, 1 a^ + 1 2 

 „ 19th, 1 2 



20th, 3 2s ... 2 2s 



„ 21st, 1 (? + I 2 ... 1 ? 



„ 22nd, 1 2 ... 1 ? 



23rd, 2 2s 



„ 24th, 

 25th, 

 „ 26th, 1 2 



„ 27th, 

 „ 28th, 



„ 29th, 1 2 



30th, 

 .July 1st, 

 2nd, 

 3rd, 12 2 2s 



27 3's + 45 2 s ... 29_a^ + 43_2_s 



^' 7'2 ' 72 



Of this number exactly half (72) are of each type ; of the ab. 

 doiihledayaria, 27 are males and 45 females, and of the light type 29 

 are males and 43 females. 



[I have to thank Mr. Turner for submitting these interesting notes 

 to me for comment. The facts are quite in agreement with previous 

 records of broods of A. betiilaria reared from parents, one of which was 

 of the type form, while the other was of the var. douhledayaria. The 

 late Mr. A. Harrison records a brood reared from eggs laid by a type 

 2 crossed with a douhledaijaria S '• — 50 doid)ledayaria = 'i5-d%. 54 

 type = 54-l%. 



A brood I reared from wild parents, type (J smd doiddedaijaria 2 

 gave 109 doubledai/nria = il%. 123 type = 53%. 



The Mendelian expectation in regard to these and Miss Miller's 

 brood would be either all black or all of type form, if one of the 

 parents happened to be a pure dominant (I think I am right in saying 

 that the question is still open as to which form acts as dominant and 

 which as recessive in the case of A. hetularia) or, if one parent was a 



