ON THE TEANSPOET OF OVA. 73 



under a tap to catch a drip all night, be certain that 

 the stop-cock does not run away the water faster 

 than the drip supplies it, and be sure also that no 

 accident can happen to stop or even impede the 

 drip. Should either of these happen, the ova will 

 be run dry. 



It is advisable that there should be no break in 

 the railway journey, and it will of course be neces- 

 sary that some one should be on the look out for 

 the ova on its arrival. A telegraphic message 

 should be sent off, as soon as the ova is deposited 

 in the van, to the recipient, warning him of the train 

 it will arrive by. This is the method we adopted, 

 and with perfect success. 



I must here cite the most remarkable instance of 

 the safe conveyance of ova which has in all proba- 

 bility ever been carried out. I refer to the sending 

 of ova to Australia. After many attempts and many 

 failures, in all of which water was employed, Mr. 

 Youl (to whose energy and perseverance the success 

 of this experiment is entirely due) determined to try 

 whether the ova could not be sent out in wet moss, 

 packed in ice ; and after trying some preliminary 

 experiments, by the co-operation of the "Wenham 

 Lake -Ice Company, which gave encouraging results, 

 during the spring and summer of 1863, he, during 



