dominants and recessives in the ratio of 3:1, as 

 in its parent generation. Thus Mendel has es- 

 tablished these facts: First, that in every case 

 where contrasting individuals are crossed, the 

 resulting dominants and recessives will be in 

 ratio as 3:1, and also in every case where the 

 inheritance of characters are concerned, the 

 effect of the cross in succeeding generations is 

 to produce three different types of individuals, 

 those of the recessive that breed true, those of 

 the dominant that breed true, and those of 

 the dominant that give both dominant 

 ard recessive offspring, in the ratio of 

 3:1." Dr. Burgin pointed out the good 

 results to be gained by discontinuing the old 

 hit-or-miss methods of breeding, and adopting 

 a systematic course of procedure that will on- 

 able one to breed pure strains of fish, and to 

 know how to control the same, and thereby 

 raise the standard in breeding. Now that the 

 breeding season is at hand, why not experiment 

 along this line ? 



DON'T MISS THIS 



The beautiful cup donated by Mr. Harry 

 Peters will be up for competition at the com- 

 ing meeting. It will become the permanent 

 property of the member exhibiting the best 

 single fish, regardless of class. This competi- 

 tion will be judged separately from the regu- 

 lar competition of the evening, although all 

 fishes shown will be eligible for the cup. 

 Neither age nor previous awards can bar a 

 fish. 



Now let everybody try for this splendid 

 trophy. Bring along your best, whether vou 

 think it can win or not. Mavbe you under- 

 vrlue ^our own stock. Nothing truer than 

 "Nothing ventured, nothing gained." 



Mr. G. Bertram Regar, 1000 Chestnut street, 

 would like to purchase a nicelv finished s,e^o^d- 

 hand aquarium of from 25 to 30 gallons' 

 capacity. 



