AGRICULTURAL EXPERIMENT STATION. 103 



Pyrethrum or Persian Insect Powder should be blown into the hair 

 by means of a small pair of hand bellows until it is well filled. Ashes 

 could be applied in the same way or sifted over the animal and rub- 

 bed in with the hand. Dry fine road dust can be used, and like ashes 

 probably acts by stopping - the spiracles of the parasite. This last 

 seems to be nature's remedy, as animals will throw dirt over them- 

 selves when they have access to it . The unctions should be applied 

 about the eyes, nostrils, base of horns, upon the neck and shoulders, and 

 along the back. The decoctions are not practical remedies during the 

 winter, unless the animals are kept in a warm room during treatment. 

 The liquid remedies are probably the best and should be rsorted to 

 when possible, especially in bad cases. The animals should be wet 

 with the solution. Care should be taken that the solution is not too 

 strong, and keep it out of the animal's eyes. The kerosene emulsion 

 should be considerably diluted. The animals could be carded with a 

 brush dipped in kerosene oil and the lice much reduced or destroyed. 



Fumigation of the animals is sometimes resorted to, but it requires 

 a tight box stall with a door behind and a wood stanchion in front. 

 A canvas covering is made to fit tightly over the head of the animal, 

 leaving only the eyes and nose exposed, while the other end of the 

 canvas is tacked to the stall. Into this compartment through an 

 opening, the burning tobacco, sulphur or pyrethrum is introduced. 

 The time of exposure would vary Avith the strength of the fumes. 

 Prof. Osborn found that the fumes from two ounces of tobacco and 

 a half hour exposure was sufficient. Pyrethrum would probably do 

 equally as well or better. The tobacco or pyrethrum could be burnt 

 upon a piece of sheet iron heated by a small kerosene oil stove. r 



EGGS OF THE LONG-NOSED OX-LOUSE. 

 Haematopiniis Yitula, L. 



After writing the article upon cattle lice we received from Mr. 

 Batchelder specimens of hair with the eggs of the above species 

 attached. As the egg- had never been described and figured, we pre- 

 pared the following account which appeared in Psyche, June 1S95, 

 but it should be put on record in the Station Report. 



Professor Osborn says in his monograph "Pedicula and Mallophaga 

 affecting- Man and the Lower Animals" (Bull. 7, Div. Ent. U. S. Dept. 

 Agric. p. 18) "that the eggs of this species have not been described, 

 and we have not had the good fortune to discover them." Having been 

 more fortunate we are able to submit the following account of the 

 eggs of this species. The Long-nosed ox-louse has been quite bad this 

 winter in herds in the vicinity of Thomaston, Maine. At our request 

 Mr. A. W. Batchelder of Thomaston collected some hair from the in- 

 fested animals, and upon this we found three egg-shells with the 

 operculum off, but the form, sculptiire, manner and place of attach- 

 ment to the hairs seemed perfect. 



